diff --git a/app/scodoc/gen_tables.py b/app/scodoc/gen_tables.py
index 3791c8142..19d7f6dea 100644
--- a/app/scodoc/gen_tables.py
+++ b/app/scodoc/gen_tables.py
@@ -279,7 +279,7 @@ class GenTable(object):
         """
         if format == "html":
             return self.html()
-        elif format == "xls":
+        elif format == "xls" or format == "xlsx":
             return self.excel()
         elif format == "text" or format == "csv":
             return self.text()
@@ -465,22 +465,24 @@ class GenTable(object):
         return "\n".join(H)
 
     def excel(self, wb=None):
-        "Simple Excel representation of the table"
-        L = sco_excel.ScoExcelSheet(sheet_name=self.xls_sheet_name)
-        style_bold = sco_excel.Excel_MakeStyle(bold=True)
-
-        L.cells += self.xls_before_table
-        L.set_style(style_bold, li=len(L.cells))
-        L.append(self.get_titles_list())
-        L.cells += [[x for x in line] for line in self.get_data_list()]
+        """Simple Excel representation of the table"""
+        ses = sco_excel.ScoExcelSheet(sheet_name=self.xls_sheet_name, wb=wb)
+        ses.rows += self.xls_before_table
+        style_bold = sco_excel.excel_make_style(bold=True)
+        style_base = sco_excel.excel_make_style()
+        ses.append_row(ses.make_row(self.get_titles_list(), style_bold))
+        for line in self.get_data_list():
+            ses.append_row(ses.make_row(line, style_base))
         if self.caption:
-            L.append([])  # empty line
-            L.append([self.caption])
+            ses.append_blank_row()  # empty line
+            ses.append_single_cell_row(self.caption, style_base)
         if self.origin:
-            L.append([])  # empty line
-            L.append([self.origin])
-
-        return L.gen_workbook(wb=wb)
+            ses.append_blank_row()  # empty line
+            ses.append_single_cell_row(self.origin, style_base)
+        if wb is None:
+            return ses.generate_standalone()
+        else:
+            ses.generate_embeded()
 
     def text(self):
         "raw text representation of the table"
@@ -648,10 +650,10 @@ class GenTable(object):
                 return scu.sendPDFFile(REQUEST, doc, filename + ".pdf")
             else:
                 return doc
-        elif format == "xls":
+        elif format == "xls" or format == "xlsx":
             xls = self.excel()
             if publish:
-                return sco_excel.sendExcelFile(REQUEST, xls, filename + ".xls")
+                return sco_excel.send_excel_file(REQUEST, xls, filename + ".xls")
             else:
                 return xls
         elif format == "text":
diff --git a/app/scodoc/sco_excel.py b/app/scodoc/sco_excel.py
index 7ac59ba8f..b7111a328 100644
--- a/app/scodoc/sco_excel.py
+++ b/app/scodoc/sco_excel.py
@@ -1,662 +1,764 @@
-# -*- mode: python -*-
-# -*- coding: utf-8 -*-
-
-##############################################################################
-#
-# Gestion scolarite IUT
-#
-# Copyright (c) 1999 - 2021 Emmanuel Viennet.  All rights reserved.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-#   Emmanuel Viennet      emmanuel.viennet@viennet.net
-#
-##############################################################################
-
-
-""" Excel file handling
-"""
-import time, datetime
-
-
-import app.scodoc.sco_utils as scu
-from app.scodoc import notesdb
-from app.scodoc.notes_log import log
-from app.scodoc.scolog import logdb
-from app.scodoc.sco_exceptions import ScoValueError
-from app.scodoc import sco_preferences
-import six
-from openpyxl import Workbook
-from openpyxl.styles import Font, PatternFill, Border, Side, Alignment, Protection
-from openpyxl.cell import WriteOnlyCell
-from tempfile import NamedTemporaryFile
-
-# colors, voir exemple format.py
-COLOR_CODES = {
-    "black": 0,
-    "red": 0x0A,
-    "mauve": 0x19,
-    "marron": 0x3C,
-    "blue": 0x4,
-    "orange": 0x34,
-    "lightyellow": 0x2B,
-}
-
-
-def send_excel_file(REQUEST, data, filename):
-    """publication fichier.
-    (on ne doit rien avoir émis avant, car ici sont générés les entetes)
-    """
-    filename = (
-        scu.unescape_html(scu.suppress_accents(filename))
-        .replace("&", "")
-        .replace(" ", "_")
-    )
-    REQUEST.RESPONSE.setHeader("content-type", scu.XLSX_MIMETYPE)
-    REQUEST.RESPONSE.setHeader(
-        "content-disposition", 'attachment; filename="%s"' % filename
-    )
-    return data
-
-
-##  (stolen from xlrd)
-# Convert an Excel number (presumed to represent a date, a datetime or a time) into
-# a Python datetime.datetime
-# @param xldate The Excel number
-# @param datemode 0: 1900-based, 1: 1904-based.
-# @return a datetime.datetime object, to the nearest_second.
-# <br>Special case: if 0.0 <= xldate < 1.0, it is assumed to represent a time;
-# a datetime.time object will be returned.
-# <br>Note: 1904-01-01 is not regarded as a valid date in the datemode 1 system; its "serial number"
-# is zero.
-
-_XLDAYS_TOO_LARGE = (2958466, 2958466 - 1462)  # This is equivalent to 10000-01-01
-
-
-def xldate_as_datetime(xldate, datemode=0):
-    if datemode not in (0, 1):
-        raise ValueError("invalid mode %s" % datemode)
-    if xldate == 0.00:
-        return datetime.time(0, 0, 0)
-    if xldate < 0.00:
-        raise ValueError("invalid date code %s" % xldate)
-    xldays = int(xldate)
-    frac = xldate - xldays
-    seconds = int(round(frac * 86400.0))
-    assert 0 <= seconds <= 86400
-    if seconds == 86400:
-        seconds = 0
-        xldays += 1
-    if xldays >= _XLDAYS_TOO_LARGE[datemode]:
-        raise ValueError("date too large %s" % xldate)
-
-    if xldays == 0:
-        # second = seconds % 60; minutes = seconds // 60
-        minutes, second = divmod(seconds, 60)
-        # minute = minutes % 60; hour    = minutes // 60
-        hour, minute = divmod(minutes, 60)
-        return datetime.time(hour, minute, second)
-
-    if xldays < 61 and datemode == 0:
-        raise ValueError("ambiguous date %s" % xldate)
-
-    return datetime.datetime.fromordinal(
-        xldays + 693594 + 1462 * datemode
-    ) + datetime.timedelta(seconds=seconds)
-
-
-# Sous-classes pour ajouter methode savetostr()
-# (generation de fichiers en memoire)
-# XXX ne marche pas car accès a methodes privees (__xxx)
-# -> on utilise version modifiee par nous meme de pyExcelerator
-#
-# class XlsDocWithSave(CompoundDoc.XlsDoc):
-#     def savetostr(self, stream):
-#         #added by Emmanuel: save method, but returns a string
-#         # 1. Align stream on 0x1000 boundary (and therefore on sector boundary)
-#         padding = '\x00' * (0x1000 - (len(stream) % 0x1000))
-#         self.book_stream_len = len(stream) + len(padding)
-
-#         self.__build_directory()
-#         self.__build_sat()
-#         self.__build_header()
-
-#         return self.header+self.packed_MSAT_1st+stream+padding+self.packed_MSAT_2nd+self.packed_SAT+self.dir_stream
-
-# class WorkbookWithSave(Workbook):
-#     def savetostr(self):
-#         doc = XlsDocWithSave()
-#         return doc.savetostr(self.get_biff_data())
-
-
-def Excel_MakeStyle(
-    bold=False, italic=False, color="black", bgcolor=None, halign=None, valign=None
-):
-    style = XFStyle()
-    font = Font()
-    if bold:
-        font.bold = bold
-    if italic:
-        font.italic = italic
-    font.name = "Arial"
-    colour_index = COLOR_CODES.get(color, None)
-    if colour_index:
-        font.colour_index = colour_index
-    if bgcolor:
-        style.pattern = Pattern()
-        style.pattern.pattern = Pattern.SOLID_PATTERN
-        style.pattern.pattern_fore_colour = COLOR_CODES.get(bgcolor, None)
-    al = None
-    if halign:
-        al = Alignment()
-        al.horz = {
-            "left": Alignment.HORZ_LEFT,
-            "right": Alignment.HORZ_RIGHT,
-            "center": Alignment.HORZ_CENTER,
-        }[halign]
-    if valign:
-        if not al:
-            al = Alignment()
-        al.vert = {
-            "top": Alignment.VERT_TOP,
-            "bottom": VERT_BOTTOM,
-            "center": VERT_CENTER,
-        }[valign]
-    if al:
-        style.alignment = al
-    style.font = font
-    return style
-
-
-class ScoExcelSheet(object):
-    def __init__(self, sheet_name="feuille", default_style=None):
-        self.sheet_name = sheet_name
-        self.cells = []  # list of list
-        self.cells_styles_lico = {}  # { (li,co) : style }
-        self.cells_styles_li = {}  # { li : style }
-        self.cells_styles_co = {}  # { co : style }
-        if not default_style:
-            default_style = Excel_MakeStyle()
-        self.default_style = default_style
-
-    def set_style(self, style=None, li=None, co=None):
-        if li != None and co != None:
-            self.cells_styles_lico[(li, co)] = style
-        elif li != None:
-            self.cells_styles_li[li] = style
-        elif co != None:
-            self.cells_styles_co[co] = style
-
-    def append(self, l):
-        """Append a line of cells"""
-        self.cells.append(l)
-
-    def get_cell_style(self, li, co):
-        """Get style for specified cell"""
-        return (
-            self.cells_styles_lico.get((li, co), None)
-            or self.cells_styles_li.get(li, None)
-            or self.cells_styles_co.get(co, None)
-            or self.default_style
-        )
-
-    def gen_workbook(self, wb=None):
-        """Generates and returns a workbook from stored data.
-        If wb, add a sheet (tab) to the existing workbook (in this case, returns None).
-        """
-        if wb == None:
-            wb = Workbook()  # Création du fichier
-            sauvegarde = True
-        else:
-            sauvegarde = False
-        ws0 = wb.add_sheet(self.sheet_name)
-        li = 0
-        for l in self.cells:
-            co = 0
-            for c in l:
-                # safety net: allow only str, int and float
-                # #py3 #sco8 A revoir lors de la ré-écriture de ce module
-                # XXX if type(c) not in (IntType, FloatType):
-                #    c = str(c).decode(scu.SCO_ENCODING)
-
-                ws0.write(li, co, c, self.get_cell_style(li, co))
-                co += 1
-            li += 1
-        if sauvegarde == True:
-            return wb.savetostr()
-        else:
-            return None
-
-
-def Excel_SimpleTable(titles=[], lines=[[]], SheetName="feuille", titlesStyles=[]):
-    """Export simple type 'CSV': 1ere ligne en gras, le reste tel quel"""
-    # XXX devrait maintenant utiliser ScoExcelSheet
-    wb = Workbook()
-    ws0 = wb.add_sheet(SheetName.decode(scu.SCO_ENCODING))
-    if not titlesStyles:
-        style = Excel_MakeStyle(bold=True)
-        titlesStyles = [style] * len(titles)
-    # ligne de titres
-    col = 0
-    for it in titles:
-        ws0.write(0, col, it.decode(scu.SCO_ENCODING), titlesStyles[col])
-        col += 1
-    # suite
-    default_style = Excel_MakeStyle()
-    text_style = Excel_MakeStyle()
-    text_style.num_format_str = "@"
-    li = 1
-    for l in lines:
-        col = 0
-        for it in l:
-            cell_style = default_style
-            # safety net: allow only str, int and float
-            if isinstance(it, LongType):  # XXX
-                it = int(it)  # assume all ScoDoc longs fits in int !
-            elif type(it) not in (IntType, FloatType):  # XXX A REVOIR
-                it = str(it).decode(scu.SCO_ENCODING)
-                cell_style = text_style
-            ws0.write(li, col, it, cell_style)
-            col += 1
-        li += 1
-    #
-    return wb.savetostr()
-
-
-def Excel_feuille_saisie(E, titreannee, description, lines):
-    """Genere feuille excel pour saisie des notes.
-    E: evaluation (dict)
-    lines: liste de tuples
-               (etudid, nom, prenom, etat, groupe, val, explanation)
-    """
-    SheetName = "Saisie notes"
-    wb = Workbook()
-    ws0 = wb.add_sheet(SheetName.decode(scu.SCO_ENCODING))
-    # ajuste largeurs colonnes (unite inconnue, empirique)
-    ws0.col(0).width = 400  # codes
-    ws0.col(1).width = 6000  # noms
-    ws0.col(2).width = 4000  # prenoms
-    ws0.col(3).width = 6000  # groupes
-    ws0.col(4).width = 3000  # notes
-    ws0.col(5).width = 13000  # remarques
-    # styles
-    style_titres = XFStyle()
-    font0 = Font()
-    font0.bold = True
-    font0.name = "Arial"
-    font0.bold = True
-    font0.height = 14 * 0x14
-    style_titres.font = font0
-
-    style_expl = XFStyle()
-    font_expl = Font()
-    font_expl.name = "Arial"
-    font_expl.italic = True
-    font0.height = 12 * 0x14
-    font_expl.colour_index = 0x0A  # rouge, voir exemple format.py
-    style_expl.font = font_expl
-
-    topborders = Borders()
-    topborders.top = 1
-    topleftborders = Borders()
-    topleftborders.top = 1
-    topleftborders.left = 1
-    rightborder = Borders()
-    rightborder.right = 1
-
-    style_ro = XFStyle()  # cells read-only
-    font_ro = Font()
-    font_ro.name = "Arial"
-    font_ro.colour_index = COLOR_CODES["mauve"]
-    style_ro.font = font_ro
-    style_ro.borders = rightborder
-
-    style_dem = XFStyle()  # cells read-only
-    font_dem = Font()
-    font_dem.name = "Arial"
-    font_dem.colour_index = COLOR_CODES["marron"]
-    style_dem.font = font_dem
-    style_dem.borders = topborders
-
-    style = XFStyle()
-    font1 = Font()
-    font1.name = "Arial"
-    font1.height = 12 * 0x14
-    style.font = font1
-
-    style_nom = XFStyle()  # style pour nom, prenom, groupe
-    style_nom.font = font1
-    style_nom.borders = topborders
-
-    style_notes = XFStyle()
-    font2 = Font()
-    font2.name = "Arial"
-    font2.bold = True
-    style_notes.font = font2
-    style_notes.num_format_str = "general"
-    style_notes.pattern = Pattern()  # fond jaune
-    style_notes.pattern.pattern = Pattern.SOLID_PATTERN
-    style_notes.pattern.pattern_fore_colour = COLOR_CODES["lightyellow"]
-    style_notes.borders = topborders
-
-    style_comment = XFStyle()
-    font_comment = Font()
-    font_comment.name = "Arial"
-    font_comment.height = 9 * 0x14
-    font_comment.colour_index = COLOR_CODES["blue"]
-    style_comment.font = font_comment
-    style_comment.borders = topborders
-
-    # ligne de titres
-    li = 0
-    ws0.write(
-        li, 0, "Feuille saisie note (à enregistrer au format excel)", style_titres
-    )
-    li += 1
-    ws0.write(li, 0, "Saisir les notes dans la colonne E (cases jaunes)", style_expl)
-    li += 1
-    ws0.write(li, 0, "Ne pas modifier les cases en mauve !", style_expl)
-    li += 1
-    # Nom du semestre
-    ws0.write(
-        li, 0, scu.unescape_html(titreannee).decode(scu.SCO_ENCODING), style_titres
-    )
-    li += 1
-    # description evaluation
-    ws0.write(
-        li, 0, scu.unescape_html(description).decode(scu.SCO_ENCODING), style_titres
-    )
-    li += 1
-    ws0.write(
-        li, 0, "Evaluation du %s (coef. %g)" % (E["jour"], E["coefficient"]), style
-    )
-    li += 1
-    li += 1  # ligne blanche
-    # code et titres colonnes
-    ws0.write(li, 0, "!%s" % E["evaluation_id"], style_ro)
-    ws0.write(li, 1, "Nom", style_titres)
-    ws0.write(li, 2, "Prénom", style_titres)
-    ws0.write(li, 3, "Groupe", style_titres)
-    ws0.write(li, 4, "Note sur %g" % E["note_max"], style_titres)
-    ws0.write(li, 5, "Remarque", style_titres)
-    # etudiants
-    for line in lines:
-        li += 1
-        st = style_nom
-        ws0.write(li, 0, ("!" + line[0]).decode(scu.SCO_ENCODING), style_ro)  # code
-        if line[3] != "I":
-            st = style_dem
-            if line[3] == "D":  # demissionnaire
-                s = "DEM"
-            else:
-                s = line[3]  # etat autre
-        else:
-            s = line[4]  # groupes TD/TP/...
-        ws0.write(li, 1, line[1].decode(scu.SCO_ENCODING), st)
-        ws0.write(li, 2, line[2].decode(scu.SCO_ENCODING), st)
-        ws0.write(li, 3, s.decode(scu.SCO_ENCODING), st)
-        try:
-            val = float(line[5])
-        except:
-            val = line[5].decode(scu.SCO_ENCODING)
-        ws0.write(li, 4, val, style_notes)  # note
-        ws0.write(li, 5, line[6].decode(scu.SCO_ENCODING), style_comment)  # comment
-    # explication en bas
-    li += 2
-    ws0.write(li, 1, "Code notes", style_titres)
-    ws0.write(li + 1, 1, "ABS", style_expl)
-    ws0.write(li + 1, 2, "absent (0)", style_expl)
-    ws0.write(li + 2, 1, "EXC", style_expl)
-    ws0.write(li + 2, 2, "pas prise en compte", style_expl)
-    ws0.write(li + 3, 1, "ATT", style_expl)
-    ws0.write(li + 3, 2, "en attente", style_expl)
-    ws0.write(li + 4, 1, "SUPR", style_expl)
-    ws0.write(li + 4, 2, "pour supprimer note déjà entrée", style_expl)
-    ws0.write(li + 5, 1, "", style_expl)
-    ws0.write(li + 5, 2, "cellule vide -> note non modifiée", style_expl)
-    return wb.savetostr()
-
-
-def Excel_to_list(data, convert_to_string=str):  # we may need 'encoding' argument ?
-    """returns list of list
-    convert_to_string is a conversion function applied to all non-string values (ie numbers)
-    """
-    try:
-        P = parse_xls("", scu.SCO_ENCODING, doc=data)
-    except:
-        log("Excel_to_list: failure to import document")
-        open("/tmp/last_scodoc_import_failure.xls", "w").write(data)
-        raise ScoValueError(
-            "Fichier illisible: assurez-vous qu'il s'agit bien d'un document Excel !"
-        )
-
-    diag = []  # liste de chaines pour former message d'erreur
-    # n'utilise que la première feuille
-    if len(P) < 1:
-        diag.append("Aucune feuille trouvée dans le classeur !")
-        return diag, None
-    if len(P) > 1:
-        diag.append("Attention: n'utilise que la première feuille du classeur !")
-    # fill matrix
-    sheet_name, values = P[0]
-    sheet_name = sheet_name.encode(scu.SCO_ENCODING, "backslashreplace")
-    if not values:
-        diag.append("Aucune valeur trouvée dans le classeur !")
-        return diag, None
-    indexes = list(values.keys())
-    # search numbers of rows and cols
-    rows = [x[0] for x in indexes]
-    cols = [x[1] for x in indexes]
-    nbcols = max(cols) + 1
-    nbrows = max(rows) + 1
-    M = []
-    for _ in range(nbrows):
-        M.append([""] * nbcols)
-
-    for row_idx, col_idx in indexes:
-        v = values[(row_idx, col_idx)]
-        if isinstance(v, six.text_type):
-            v = v.encode(scu.SCO_ENCODING, "backslashreplace")
-        elif convert_to_string:
-            v = convert_to_string(v)
-        M[row_idx][col_idx] = v
-    diag.append('Feuille "%s", %d lignes' % (sheet_name, len(M)))
-    # diag.append(str(M))
-    #
-    return diag, M
-
-
-# Un style est enregistré comme un dictionnaire qui précise la valeur d'un attributdans la liste suivante:
-# font, border, ..  (cf https://openpyxl.readthedocs.io/en/stable/styles.html#working-with-styles)
-
-
-def _make_cell(ws, value: any = "", style=None):
-    """Contruit/retourne une cellule en spécifiant contenu et style.
-
-    ws -- La feuille où sera intégrée la cellule
-    value -- le contenu de la cellule (texte)
-    style -- le style de la cellule
-    """
-    cell = WriteOnlyCell(ws, value)
-    if "font" in style:
-        cell.font = style["font"]
-    if "border" in style:
-        cell.border = style["border"]
-    return cell
-
-
-def excel_feuille_listeappel(
-    sem,
-    groupname,
-    lines,
-    partitions=None,
-    with_codes=False,
-    with_paiement=False,
-    server_name=None,
-):
-    """generation feuille appel"""
-    if partitions is None:
-        partitions = []
-    formsemestre_id = sem["formsemestre_id"]
-    sheet_name = "Liste " + groupname
-    wb = Workbook(write_only=True)
-    ws = wb.create_sheet(title=sheet_name)
-    ws.column_dimensions["A"].width = 3
-    ws.column_dimensions["B"].width = 35
-    ws.column_dimensions["C"].width = 12
-
-    font1 = Font(name="Arial", size=11)
-    font1i = Font(name="Arial", size=10, italic=True)
-    font1b = Font(name="Arial", size=11, bold=True)
-
-    side_thin = Side(border_style="thin", color="FF000000")
-
-    border_tbl = Border(top=side_thin, bottom=side_thin, left=side_thin)
-    border_tblr = Border(
-        top=side_thin, bottom=side_thin, left=side_thin, right=side_thin
-    )
-
-    style1i = {
-        "font": font1i,
-    }
-
-    style1b = {
-        "font": font1,
-        "border": border_tbl,
-    }
-
-    style2 = {
-        "font": Font(name="Arial", size=14),
-    }
-
-    style2b = {
-        "font": font1i,
-        "border": border_tblr,
-    }
-
-    style2t3 = {
-        "border": border_tblr,
-    }
-
-    style2t3bold = {
-        "font": font1b,
-        "border": border_tblr,
-    }
-
-    style3 = {
-        "font": Font(name="Arial", bold=True, size=14),
-    }
-
-    nb_weeks = 4  # nombre de colonnes pour remplir absences
-
-    # ligne 1
-    title = "%s %s (%s - %s)" % (
-        sco_preferences.get_preference("DeptName", formsemestre_id),
-        notesdb.unquote(sem["titre_num"]),
-        sem["date_debut"],
-        sem["date_fin"],
-    )
-
-    cell_2 = _make_cell(ws, title, style2)
-    ws.append([None, cell_2])
-
-    # ligne 2
-    cell_2 = _make_cell(ws, "Discipline :", style2)
-    ws.append([None, cell_2])
-
-    # ligne 3
-    cell_2 = _make_cell(ws, "Enseignant :", style2)
-    cell_6 = _make_cell(ws, ("Groupe %s" % groupname), style3)
-    ws.append([None, cell_2, None, None, None, None, cell_6])
-
-    # ligne 4: Avertissement pour ne pas confondre avec listes notes
-    cell_2 = _make_cell(
-        ws, "Ne pas utiliser cette feuille pour saisir les notes !", style1i
-    )
-    ws.append([None, None, cell_2])
-
-    ws.append([None])
-    ws.append([None])
-
-    # ligne 7: Entête (contruction dans une liste cells)
-    cells = [None]  # passe la première colonne
-    cell_2 = _make_cell(ws, "Nom", style3)
-    cells.append(cell_2)
-    for partition in partitions:
-        cells.append(_make_cell(ws, partition["partition_name"], style3))
-    if with_codes:
-        cells.append(_make_cell(ws, "etudid", style3))
-        cells.append(_make_cell(ws, "code_nip", style3))
-        cells.append(_make_cell(ws, "code_ine", style3))
-    for i in range(nb_weeks):
-        cells.append(_make_cell(ws, "", style2b))
-    ws.append(cells)
-
-    n = 0
-    # pour chaque étudiant
-    for t in lines:
-        n += 1
-        nomprenom = (
-            t["civilite_str"]
-            + " "
-            + t["nom"]
-            + " "
-            + scu.strcapitalize(scu.strlower(t["prenom"]))
-        )
-        style_nom = style2t3
-        if with_paiement:
-            paie = t.get("paiementinscription", None)
-            if paie is None:
-                nomprenom += " (inscription ?)"
-                style_nom = style2t3bold
-            elif not paie:
-                nomprenom += " (non paiement)"
-                style_nom = style2t3bold
-        cell_1 = _make_cell(ws, n, style1b)
-        cell_2 = _make_cell(ws, nomprenom, style_nom)
-        cells = [cell_1, cell_2]
-
-        for partition in partitions:
-            if partition["partition_name"]:
-                cells.append(
-                    _make_cell(ws, t.get(partition["partition_id"], ""), style2t3)
-                )
-        if with_codes:
-            cells.append(_make_cell(ws, t["etudid"], style2t3))
-            code_nip = t.get("code_nip", "")
-            cells.append(_make_cell(ws, code_nip, style2t3))
-            code_ine = t.get("code_ine", "")
-            cells.append(_make_cell(ws, code_ine, style2t3))
-        cells.append(_make_cell(ws, t.get("etath", ""), style2b))
-        for i in range(1, nb_weeks):
-            cells.append(_make_cell(ws, style=style2t3))
-            # ws0.row(li).height = 850  # sans effet ?
-            # (openpyxl: en mode optimisé, les hauteurs de lignes doivent être spécifiées avant toutes les cellules)
-        ws.append(cells)
-
-    ws.append([None])
-
-    # bas de page (date, serveur)
-    dt = time.strftime("%d/%m/%Y à %Hh%M")
-    if server_name:
-        dt += " sur " + server_name
-    cell_2 = _make_cell(ws, ("Liste éditée le " + dt), style1i)
-    ws.append([None, cell_2])
-
-    # construction d'un flux (https://openpyxl.readthedocs.io/en/stable/tutorial.html#saving-as-a-stream)
-    with NamedTemporaryFile() as tmp:
-        wb.save(tmp.name)
-        tmp.seek(0)
-        return tmp.read()
+# -*- mode: python -*-
+# -*- coding: utf-8 -*-
+
+##############################################################################
+#
+# Gestion scolarite IUT
+#
+# Copyright (c) 1999 - 2021 Emmanuel Viennet.  All rights reserved.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+#   Emmanuel Viennet      emmanuel.viennet@viennet.net
+#
+##############################################################################
+
+
+""" Excel file handling
+"""
+import datetime
+import io
+import time
+from enum import Enum
+from tempfile import NamedTemporaryFile
+
+from openpyxl import Workbook, load_workbook
+from openpyxl.cell import WriteOnlyCell
+from openpyxl.styles import Font, Border, Side, Alignment, PatternFill
+
+import app.scodoc.sco_utils as scu
+from app.scodoc import notesdb
+from app.scodoc import sco_preferences
+from app.scodoc.notes_log import log
+from app.scodoc.sco_exceptions import ScoValueError
+
+
+class COLORS(Enum):
+    BLACK = "FF000000"
+    WHITE = "FFFFFFFF"
+    RED = "FFFF0000"
+    BROWN = "FF993300"
+    PURPLE = "FF993366"
+    BLUE = "FF0000FF"
+    ORANGE = "FFFF3300"
+    LIGHT_YELLOW = "FFFFFF99"
+
+
+def send_excel_file(request, data, filename):
+    """publication fichier.
+    (on ne doit rien avoir émis avant, car ici sont générés les entetes)
+    """
+    filename = (
+        scu.unescape_html(scu.suppress_accents(filename))
+        .replace("&", "")
+        .replace(" ", "_")
+    )
+    request.RESPONSE.setHeader("content-type", scu.XLSX_MIMETYPE)
+    request.RESPONSE.setHeader(
+        "content-disposition", 'attachment; filename="%s"' % filename
+    )
+    return data
+
+
+# Un style est enregistré comme un dictionnaire qui précise la valeur d'un attributdans la liste suivante:
+# font, border, number_format, fill, ..  (cf https://openpyxl.readthedocs.io/en/stable/styles.html#working-with-styles)
+
+
+#  (stolen from xlrd)
+# Convert an Excel number (presumed to represent a date, a datetime or a time) into
+# a Python datetime.datetime
+# @param xldate The Excel number
+# @param datemode 0: 1900-based, 1: 1904-based.
+# @return a datetime.datetime object, to the nearest_second.
+# <br>Special case: if 0.0 <= xldate < 1.0, it is assumed to represent a time;
+# a datetime.time object will be returned.
+# <br>Note: 1904-01-01 is not regarded as a valid date in the datemode 1 system; its "serial number"
+# is zero.
+
+_XLDAYS_TOO_LARGE = (2958466, 2958466 - 1462)  # This is equivalent to 10000-01-01
+
+
+def xldate_as_datetime(xldate, datemode=0):
+    if datemode not in (0, 1):
+        raise ValueError("invalid mode %s" % datemode)
+    if xldate == 0.00:
+        return datetime.time(0, 0, 0)
+    if xldate < 0.00:
+        raise ValueError("invalid date code %s" % xldate)
+    xldays = int(xldate)
+    frac = xldate - xldays
+    seconds = int(round(frac * 86400.0))
+    assert 0 <= seconds <= 86400
+    if seconds == 86400:
+        seconds = 0
+        xldays += 1
+    if xldays >= _XLDAYS_TOO_LARGE[datemode]:
+        raise ValueError("date too large %s" % xldate)
+
+    if xldays == 0:
+        # second = seconds % 60; minutes = seconds // 60
+        minutes, second = divmod(seconds, 60)
+        # minute = minutes % 60; hour    = minutes // 60
+        hour, minute = divmod(minutes, 60)
+        return datetime.time(hour, minute, second)
+
+    if xldays < 61 and datemode == 0:
+        raise ValueError("ambiguous date %s" % xldate)
+
+    return datetime.datetime.fromordinal(
+        xldays + 693594 + 1462 * datemode
+    ) + datetime.timedelta(seconds=seconds)
+
+
+class ScoExcelBook:
+    """Permet la génération d'un classeur xlsx composé de plusieurs feuilles.
+    usage:
+        wb = ScoExcelBook()
+        ws0 = wb.create_sheet('sheet name 0')
+        ws1 = wb.create_sheet('sheet name 1')
+        ...
+        steam = wb.generate()
+    """
+    def __init__(self):
+        self.sheets = []  # list of sheets
+
+    def create_sheet(self, sheet_name="feuille", default_style=None):
+        sheet = ScoExcelSheet(sheet_name, default_style)
+        self.sheets.append(sheet)
+
+    def generate(self):
+        """ génération d'un stream binaire représentant la totalité du classeur.
+        retourne le flux
+        """
+        wb = Workbook(write_only=True)
+        for sheet in self.sheets:
+            sheet.generate(self)
+        # construction d'un flux (https://openpyxl.readthedocs.io/en/stable/tutorial.html#saving-as-a-stream)
+        with NamedTemporaryFile() as tmp:
+            wb.save(tmp.name)
+            tmp.seek(0)
+            return tmp.read()
+
+
+def excel_make_style(
+    bold=False,
+    italic=False,
+    color: COLORS = COLORS.BLACK,
+    bgcolor: COLORS = None,
+    halign=None,
+    valign=None,
+    format_number=None,
+):
+    """Contruit un style.
+    Les couleurs peuvent être spécfiées soit par une valeur de COLORS,
+    soit par une chaine argb (exple "FF00FF00" pour le vert)
+    color -- La couleur du texte
+    bgcolor -- la couleur de fond
+    halign -- alignement horizontal ("left", "right", "center")
+    valign -- alignement vertical ("top", "bottom", "center")
+    format_number -- formattage du contenu ("general", "@", ...)
+    """
+    style = {}
+    font = Font(name="Arial", bold=bold, italic=italic, color=color.value)
+    style["font"] = font
+    if bgcolor:
+        style["fill"] = PatternFill(fill_type="solid", bgColor=bgcolor.value)
+    if halign or valign:
+        al = Alignment()
+        if halign:
+            al.horz = {
+                "left": "left",
+                "right": "right",
+                "center": "center",
+            }[halign]
+        if valign:
+            al.vert = {
+                "top": "top",
+                "bottom": "bottom",
+                "center": "center",
+            }[valign]
+        style["alignment"] = al
+    if format_number is None:
+        style["format_number"] = "general"
+    else:
+        style["format_number"] = format_number
+    return style
+
+
+class ScoExcelSheet:
+    """Représente une feuille qui peut être indépendante ou intégrée dans un SCoExcelBook.
+    En application des directives de la bibliothèque sur l'écriture optimisée, l'ordre des opérations
+    est imposé:
+    * instructions globales (largeur/maquage des colonnes et ligne, ...)
+    * construction et ajout des cellules et ligne selon le sens de lecture (occidental)
+    ligne de haut en bas et cellules de gauche à droite (i.e. A1, A2, .. B1, B2, ..)
+    * pour finit appel de la méthode de génération
+    """
+    def __init__(self, sheet_name="feuille", default_style=None, wb=None):
+        """Création de la feuille.
+        sheet_name -- le nom de la feuille
+        default_style -- le style par défaut des cellules
+        wb -- le WorkBook dans laquelle se trouve la feuille. Si wb est None (cas d'un classeur mono-feuille),
+         un workbook est crée et associé à cette feuille.
+        """
+        self.sheet_name = sheet_name
+        self.rows = []  # list of list of cells
+        # self.cells_styles_lico = {}  # { (li,co) : style }
+        # self.cells_styles_li = {}  # { li : style }
+        # self.cells_styles_co = {}  # { co : style }
+        if default_style is None:
+            default_style = excel_make_style()
+        self.default_style = default_style
+        self.wb = wb or Workbook(write_only=True)  # Création de workbook si nécessaire
+        self.ws = self.wb.create_sheet(title=self.sheet_name)
+        self.column_dimensions = {}
+
+    def set_column_dimension_width(self, cle, value):
+        """Détermine la largeur d'une colonne.
+        cle -- identifie la colonne ("A"n "B", ...)
+        value -- la dimension (unité : 7 pixels comme affiché dans Excel)
+        """
+        self.ws.column_dimensions[cle].width = value
+
+    def set_column_dimension_hidden(self, cle, value):
+        """Masque ou affiche une colonne.
+        cle -- identifie la colonne ("A"n "B", ...)
+        value -- boolean (vrai = colonne cachée)
+        """
+        self.ws.column_dimensions[cle].hidden = value
+
+    def make_cell(self, value: any = None, style=None):
+        """Construit une cellule.
+        value -- contenu de la cellule (texte ou numérique)
+        style -- style par défaut de la feuille si non spécifié
+        """
+        cell = WriteOnlyCell(self.ws, value or "")
+        if style is None:
+            style = self.default_style
+        if "font" in style:
+            cell.font = style["font"]
+        if "border" in style:
+            cell.border = style["border"]
+        if "number_format" in style:
+            cell.number_format = style["number_format"]
+        if "fill" in style:
+            cell.fill = style["fill"]
+        if "alignment" in style:
+            cell.alignment = style["alignment"]
+        return cell
+
+    def make_row(self, values: list, style):
+        return [self.make_cell(value, style) for value in values]
+
+    def append_single_cell_row(self, value: any, style=None):
+        """construit une ligne composée d'une seule cellule et l'ajoute à la feuille.
+        mêmes paramètres que make_cell:
+        value -- contenu de la cellule (texte ou numérique)
+        style -- style par défaut de la feuille si non spécifié
+        """
+        self.append_row([self.make_cell(value, style)])
+
+    def append_blank_row(self):
+        """construit une ligne vide et l'ajoute à la feuille."""
+        self.append_row([None])
+
+    def append_row(self, row):
+        """ajoute une ligne déjà construite à la feuille."""
+        self.rows.append(row)
+
+    # def set_style(self, style=None, li=None, co=None):
+    #     if li is not None and co is not None:
+    #         self.cells_styles_lico[(li, co)] = style
+    #     elif li is None:
+    #         self.cells_styles_li[li] = style
+    #     elif co is None:
+    #         self.cells_styles_co[co] = style
+    #
+    # def get_cell_style(self, li, co):
+    #     """Get style for specified cell"""
+    #     return (
+    #             self.cells_styles_lico.get((li, co), None)
+    #             or self.cells_styles_li.get(li, None)
+    #             or self.cells_styles_co.get(co, None)
+    #             or self.default_style
+    #     )
+
+    def _generate_ws(self):
+        """génére un flux décrivant la feuille.
+        Ce flux pourra ensuite être repris dans send_excel_file (classeur mono feille)
+        ou pour la génération d'un classeur multi-feuilles
+        """
+        for col in self.column_dimensions.keys():
+            self.ws.column_dimensions[col] = self.column_dimensions[col]
+        for row in self.rows:
+            self.ws.append(row)
+
+    def generate_standalone(self):
+        """génération d'un classeur mono-feuille"""
+        self._generate_ws()
+        # construction d'un flux (https://openpyxl.readthedocs.io/en/stable/tutorial.html#saving-as-a-stream)
+        with NamedTemporaryFile() as tmp:
+            self.wb.save(tmp.name)
+            tmp.seek(0)
+            return tmp.read()
+
+    def generate_embeded(self):
+        """generation d'une feuille include dans un classeur multi-feuilles"""
+        self._generate_ws()
+
+    def gen_workbook(self, wb=None):
+        """TODO: à remplacer"""
+        """Generates and returns a workbook from stored data.
+        If wb, add a sheet (tab) to the existing workbook (in this case, returns None).
+        """
+        if wb is None:
+            wb = Workbook()  # Création du fichier
+            sauvegarde = True
+        else:
+            sauvegarde = False
+        ws0 = wb.add_sheet(self.sheet_name)
+        li = 0
+        for row in self.rows:
+            co = 0
+            for c in row:
+                # safety net: allow only str, int and float
+                # #py3 #sco8 A revoir lors de la ré-écriture de ce module
+                # XXX if type(c) not in (IntType, FloatType):
+                #    c = str(c).decode(scu.SCO_ENCODING)
+                ws0.write(li, co, c, self.get_cell_style(li, co))
+                co += 1
+            li += 1
+        if sauvegarde:
+            return wb.savetostr()
+        else:
+            return None
+
+
+def excel_simple_table(
+    titles=None, lines=None, sheet_name=b"feuille", titles_styles=None
+):
+    """Export simple type 'CSV': 1ere ligne en gras, le reste tel quel"""
+    ws = ScoExcelSheet(sheet_name)
+    if titles is None:
+        titles = []
+    if lines is None:
+        lines = [[]]
+    if titles_styles is None:
+        style = excel_make_style(bold=True)
+        titles_styles = [style] * len(titles)
+    # ligne de titres
+    ws.append_row(
+        [ws.make_cell(it, style) for (it, style) in zip(titles, titles_styles)]
+    )
+    default_style = excel_make_style()
+    text_style = excel_make_style(format_number="@")
+    for line in lines:
+        cells = []
+        for it in line:
+            # safety net: allow only str, int and float
+            #     TODO Plus de type Long en Python 3 ?
+            #     if isinstance(it, long):  # XXX
+            #         it = int(it)  # assume all ScoDoc longs fits in int !
+            cell_style = default_style
+            if type(it) not in (int, float):  # XXX A REVOIR
+                cell_style = text_style
+            cells.append(ws.make_cell(it, cell_style))
+        ws.append_row(cells)
+    return ws.generate_standalone()
+
+
+def excel_feuille_saisie(e, titreannee, description, lines):
+    """Genere feuille excel pour saisie des notes.
+    E: evaluation (dict)
+    lines: liste de tuples
+               (etudid, nom, prenom, etat, groupe, val, explanation)
+    """
+    sheet_name = "Saisie notes"
+    ws = ScoExcelSheet(sheet_name)
+
+    # ajuste largeurs colonnes (unite inconnue, empirique)
+    ws.set_column_dimension_width("A", 11.0 / 7)  # codes
+    # ws.set_column_dimension_hidden("A", True)  # codes
+    ws.set_column_dimension_width("B", 164.00 / 7)  # noms
+    ws.set_column_dimension_width("C", 109.0 / 7)  # prenoms
+    ws.set_column_dimension_width("D", 164.0 / 7)  # groupes
+    ws.set_column_dimension_width("E", 115.0 / 7)  # notes
+    ws.set_column_dimension_width("F", 355.0 / 7)  # remarques
+
+    # fontes
+    font_base = Font(name="Arial", size=12)
+    font_bold = Font(name="Arial", bold=True)
+    font_italic = Font(name="Arial", size=12, italic=True, color=COLORS.RED.value)
+    font_titre = Font(name="Arial", bold=True, size=14)
+    font_purple = Font(name="Arial", color=COLORS.PURPLE.value)
+    font_brown = Font(name="Arial", color=COLORS.BROWN.value)
+    font_blue = Font(name="Arial", size=9, color=COLORS.BLUE.value)
+
+    # bordures
+    side_thin = Side(border_style="thin", color=COLORS.BLACK.value)
+    border_top = Border(top=side_thin)
+    border_right = Border(right=side_thin)
+
+    # fonds
+    fill_light_yellow = PatternFill(
+        patternType="solid", fgColor=COLORS.LIGHT_YELLOW.value
+    )
+
+    # styles
+    style = {"font": font_base}
+    style_titres = {"font": font_titre}
+    style_expl = {"font": font_italic}
+
+    style_ro = {  # cells read-only
+        "font": font_purple,
+        "border": border_right,
+    }
+    style_dem = {
+        "font": font_brown,
+        "border": border_top,
+    }
+    style_nom = {  # style pour nom, prenom, groupe
+        "font": font_base,
+        "border": border_top,
+    }
+    style_notes = {
+        "font": font_bold,
+        "number_format": "general",
+        "fill": fill_light_yellow,
+        "border": border_top,
+    }
+    style_comment = {
+        "font": font_blue,
+        "border": border_top,
+    }
+
+    # ligne de titres
+    ws.append_single_cell_row(
+        "Feuille saisie note (à enregistrer au format excel)", style_titres
+    )
+    # lignes d'instructions
+    ws.append_single_cell_row(
+        "Saisir les notes dans la colonne E (cases jaunes)", style_expl
+    )
+    ws.append_single_cell_row("Ne pas modifier les cases en mauve !", style_expl)
+    # Nom du semestre
+    ws.append_single_cell_row(scu.unescape_html(titreannee), style_titres)
+    # description evaluation
+    ws.append_single_cell_row(scu.unescape_html(description), style_titres)
+    ws.append_single_cell_row(
+        "Evaluation du %s (coef. %g)" % (e["jour"], e["coefficient"]), style
+    )
+    # ligne blanche
+    ws.append_blank_row()
+    # code et titres colonnes
+    ws.append_row(
+        [
+            ws.make_cell("!%s" % e["evaluation_id"], style_ro),
+            ws.make_cell("Nom", style_titres),
+            ws.make_cell("Prénom", style_titres),
+            ws.make_cell("Groupe", style_titres),
+            ws.make_cell("Note sur %g" % e["note_max"], style_titres),
+            ws.make_cell("Remarque", style_titres),
+        ]
+    )
+
+    # etudiants
+    for line in lines:
+        st = style_nom
+        if line[3] != "I":
+            st = style_dem
+            if line[3] == "D":  # demissionnaire
+                s = "DEM"
+            else:
+                s = line[3]  # etat autre
+        else:
+            s = line[4]  # groupes TD/TP/...
+        try:
+            val = float(line[5])
+        except ValueError:
+            val = line[5]
+        ws.append_row(
+            [
+                ws.make_cell("!" + line[0], style_ro),  # code
+                ws.make_cell(line[1], st),
+                ws.make_cell(line[2], st),
+                ws.make_cell(s, st),
+                ws.make_cell(val, style_notes),  # note
+                ws.make_cell(line[6], style_comment),  # comment
+            ]
+        )
+
+    # explication en bas
+    ws.append_row([None, ws.make_cell("Code notes", style_titres)])
+    ws.append_row(
+        [
+            None,
+            ws.make_cell("ABS", style_expl),
+            ws.make_cell("absent (0)", style_expl),
+        ]
+    )
+    ws.append_row(
+        [
+            None,
+            ws.make_cell("EXC", style_expl),
+            ws.make_cell("pas prise en compte", style_expl),
+        ]
+    )
+    ws.append_row(
+        [
+            None,
+            ws.make_cell("ATT", style_expl),
+            ws.make_cell("en attente", style_expl),
+        ]
+    )
+    ws.append_row(
+        [
+            None,
+            ws.make_cell("SUPR", style_expl),
+            ws.make_cell("pour supprimer note déjà entrée", style_expl),
+        ]
+    )
+    ws.append_row(
+        [
+            None,
+            ws.make_cell("", style_expl),
+            ws.make_cell("cellule vide -> note non modifiée", style_expl),
+        ]
+    )
+    return ws.generate_standalone()
+
+
+def excel_bytes_to_list(bytes_content):
+    filelike = io.BytesIO(bytes_content)
+    return _excel_to_list(filelike)
+
+
+def excel_file_to_list(filename):
+    return _excel_to_list(filename)
+
+
+def _excel_to_list(filelike):  # we may need 'encoding' argument ?
+    """returns list of list
+    convert_to_string is a conversion function applied to all non-string values (ie numbers)
+    """
+    try:
+        wb = load_workbook(filename=filelike, read_only=True, data_only=True)
+    except:
+        log("Excel_to_list: failure to import document")
+        open("/tmp/last_scodoc_import_failure.xls", "w").write(filelike)
+        raise ScoValueError(
+            "Fichier illisible: assurez-vous qu'il s'agit bien d'un document Excel !"
+        )
+    diag = []  # liste de chaines pour former message d'erreur
+    # n'utilise que la première feuille
+    if len(wb.get_sheet_names()) < 1:
+        diag.append("Aucune feuille trouvée dans le classeur !")
+        return diag, None
+    if len(wb.get_sheet_names()) > 1:
+        diag.append("Attention: n'utilise que la première feuille du classeur !")
+    # fill matrix
+    sheet_name = wb.get_sheet_names()[0]
+    ws = wb.get_sheet_by_name(sheet_name)
+    sheet_name = sheet_name.encode(scu.SCO_ENCODING, "backslashreplace")
+    values = {}
+    for row in ws.iter_rows():
+        for cell in row:
+            if cell.value is not None:
+                values[(cell.row - 1, cell.column - 1)] = str(cell.value)
+    if not values:
+        diag.append(
+            "Aucune valeur trouvée dans la feuille %s !"
+            % sheet_name.decode(scu.SCO_ENCODING)
+        )
+        return diag, None
+    indexes = list(values.keys())
+    # search numbers of rows and cols
+    rows = [x[0] for x in indexes]
+    cols = [x[1] for x in indexes]
+    nbcols = max(cols) + 1
+    nbrows = max(rows) + 1
+    m = []
+    for _ in range(nbrows):
+        m.append([""] * nbcols)
+
+    for row_idx, col_idx in indexes:
+        v = values[(row_idx, col_idx)]
+        # if isinstance(v, six.text_type):
+        #     v = v.encode(scu.SCO_ENCODING, "backslashreplace")
+        # elif convert_to_string:
+        #     v = convert_to_string(v)
+        m[row_idx][col_idx] = v
+    diag.append(
+        'Feuille "%s", %d lignes' % (sheet_name.decode(scu.SCO_ENCODING), len(m))
+    )
+    # diag.append(str(M))
+    #
+    return diag, m
+
+
+def excel_feuille_listeappel(
+    sem,
+    groupname,
+    lines,
+    partitions=None,
+    with_codes=False,
+    with_paiement=False,
+    server_name=None,
+):
+    """generation feuille appel"""
+    if partitions is None:
+        partitions = []
+    formsemestre_id = sem["formsemestre_id"]
+    sheet_name = "Liste " + groupname
+
+    ws = ScoExcelSheet(sheet_name)
+    ws.set_column_dimension_width("A", 3)
+    ws.set_column_dimension_width("B", 35)
+    ws.set_column_dimension_width("C", 12)
+
+    font1 = Font(name="Arial", size=11)
+    font1i = Font(name="Arial", size=10, italic=True)
+    font1b = Font(name="Arial", size=11, bold=True)
+
+    side_thin = Side(border_style="thin", color=COLORS.BLACK.value)
+
+    border_tbl = Border(top=side_thin, bottom=side_thin, left=side_thin)
+    border_tblr = Border(
+        top=side_thin, bottom=side_thin, left=side_thin, right=side_thin
+    )
+
+    style1i = {
+        "font": font1i,
+    }
+
+    style1b = {
+        "font": font1,
+        "border": border_tbl,
+    }
+
+    style2 = {
+        "font": Font(name="Arial", size=14),
+    }
+
+    style2b = {
+        "font": font1i,
+        "border": border_tblr,
+    }
+
+    style2t3 = {
+        "border": border_tblr,
+    }
+
+    style2t3bold = {
+        "font": font1b,
+        "border": border_tblr,
+    }
+
+    style3 = {
+        "font": Font(name="Arial", bold=True, size=14),
+    }
+
+    nb_weeks = 4  # nombre de colonnes pour remplir absences
+
+    # ligne 1
+    title = "%s %s (%s - %s)" % (
+        sco_preferences.get_preference("DeptName", formsemestre_id),
+        notesdb.unquote(sem["titre_num"]),
+        sem["date_debut"],
+        sem["date_fin"],
+    )
+
+    ws.append_row([None, ws.make_cell(title, style2)])
+
+    # ligne 2
+    ws.append_row([None, ws.make_cell("Discipline :", style2)])
+
+    # ligne 3
+    cell_2 = ws.make_cell("Enseignant :", style2)
+    cell_6 = ws.make_cell(("Groupe %s" % groupname), style3)
+    ws.append_row([None, cell_2, None, None, None, None, cell_6])
+
+    # ligne 4: Avertissement pour ne pas confondre avec listes notes
+    cell_2 = ws.make_cell(
+        "Ne pas utiliser cette feuille pour saisir les notes !", style1i
+    )
+    ws.append_row([None, None, cell_2])
+
+    ws.append_blank_row()
+    ws.append_blank_row()
+
+    # ligne 7: Entête (contruction dans une liste cells)
+    cell_2 = ws.make_cell("Nom", style3)
+    cells = [None, cell_2]
+    for partition in partitions:
+        cells.append(ws.make_cell(partition["partition_name"], style3))
+    if with_codes:
+        cells.append(ws.make_cell("etudid", style3))
+        cells.append(ws.make_cell("code_nip", style3))
+        cells.append(ws.make_cell("code_ine", style3))
+    for i in range(nb_weeks):
+        cells.append(ws.make_cell("", style2b))
+    ws.append_row(cells)
+
+    n = 0
+    # pour chaque étudiant
+    for t in lines:
+        n += 1
+        nomprenom = (
+            t["civilite_str"]
+            + " "
+            + t["nom"]
+            + " "
+            + scu.strcapitalize(scu.strlower(t["prenom"]))
+        )
+        style_nom = style2t3
+        if with_paiement:
+            paie = t.get("paiementinscription", None)
+            if paie is None:
+                nomprenom += " (inscription ?)"
+                style_nom = style2t3bold
+            elif not paie:
+                nomprenom += " (non paiement)"
+                style_nom = style2t3bold
+        cell_1 = ws.make_cell(n, style1b)
+        cell_2 = ws.make_cell(nomprenom, style_nom)
+        cells = [cell_1, cell_2]
+
+        for partition in partitions:
+            if partition["partition_name"]:
+                cells.append(
+                    ws.make_cell(t.get(partition["partition_id"], ""), style2t3)
+                )
+        if with_codes:
+            cells.append(ws.make_cell(t["etudid"], style2t3))
+            code_nip = t.get("code_nip", "")
+            cells.append(ws.make_cell(code_nip, style2t3))
+            code_ine = t.get("code_ine", "")
+            cells.append(ws.make_cell(code_ine, style2t3))
+        cells.append(ws.make_cell(t.get("etath", ""), style2b))
+        for i in range(1, nb_weeks):
+            cells.append(ws.make_cell(style=style2t3))
+        ws.append_row(cells)
+
+    ws.append_blank_row()
+
+    # bas de page (date, serveur)
+    dt = time.strftime("%d/%m/%Y à %Hh%M")
+    if server_name:
+        dt += " sur " + server_name
+    cell_2 = ws.make_cell(("Liste éditée le " + dt), style1i)
+    ws.append_row([None, cell_2])
+
+    return ws.generate_standalone()
diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index b6cb13208..0c6b8a5f6 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -29,6 +29,7 @@
 
    Formulaire revu en juillet 2016
 """
+import sys
 import time
 import datetime
 import psycopg2
@@ -178,8 +179,7 @@ def do_evaluation_upload_xls(context, REQUEST):
         # XXX imaginer un redirect + msg erreur
         raise AccessDenied("Modification des notes impossible pour %s" % authuser)
     #
-    data = REQUEST.form["notefile"].read()
-    diag, lines = sco_excel.Excel_to_list(data)
+    diag, lines = sco_excel.excel_file_to_list(REQUEST.form["notefile"])
     try:
         if not lines:
             raise InvalidNoteValue()
@@ -224,7 +224,7 @@ def do_evaluation_upload_xls(context, REQUEST):
                 ni += 1
         except:
             diag.append(
-                'Erreur: feuille invalide ! (erreur ligne %d)<br/>"%s"'
+                'Erreur: Ligne invalide ! (erreur ligne %d)<br/>"%s"'
                 % (ni, str(lines[ni]))
             )
             raise InvalidNoteValue()
@@ -629,7 +629,7 @@ def saisie_notes_tableur(context, evaluation_id, group_ids=[], REQUEST=None):
 
     H.append(
         """<div class="saisienote_etape2">
-    <span class="titredivsaisienote">Etape 2 : chargement d'un fichier de notes</span>"""  #'
+    <span class="titredivsaisienote">Etape 2 : chargement d'un fichier de notes</span>"""  # '
     )
 
     nf = TrivialFormulator(
@@ -702,7 +702,7 @@ def saisie_notes_tableur(context, evaluation_id, group_ids=[], REQUEST=None):
         <li><a class="stdlink" href="evaluation_suppress_alln?evaluation_id=%s">Effacer toutes les notes de cette évaluation</a> (ceci permet ensuite de supprimer l'évaluation si besoin)
         </li>"""
             % (evaluation_id, evaluation_id)
-        )  #'
+        )  # '
     H.append(
         """<li><a class="stdlink" href="moduleimpl_status?moduleimpl_id=%(moduleimpl_id)s">Revenir au module</a></li>
     <li><a class="stdlink" href="saisie_notes?evaluation_id=%(evaluation_id)s">Revenir au formulaire de saisie</a></li>
@@ -805,8 +805,8 @@ def feuille_saisie_notes(context, evaluation_id, group_ids=[], REQUEST=None):
         )
 
     filename = "notes_%s_%s.xls" % (evalname, gr_title_filename)
-    xls = sco_excel.Excel_feuille_saisie(E, sem["titreannee"], description, lines=L)
-    return sco_excel.sendExcelFile(REQUEST, xls, filename)
+    xls = sco_excel.excel_feuille_saisie(E, sem["titreannee"], description, lines=L)
+    return sco_excel.send_excel_file(REQUEST, xls, filename)
 
 
 def has_existing_decision(context, M, E, etudid):
diff --git a/app/views/notes.py b/app/views/notes.py
index 8f42c6ba0..4ed6d82f5 100644
--- a/app/views/notes.py
+++ b/app/views/notes.py
@@ -1551,6 +1551,7 @@ sco_publish(
     "/saisie_notes_tableur",
     sco_saisie_notes.saisie_notes_tableur,
     Permission.ScoEnsView,
+    methods=["GET", "POST"],
 )
 sco_publish(
     "/feuille_saisie_notes",