Best Open-Source Python Libraries for Excel


XlsxWriter is a Python module for writing files in the Excel 2007+ XLSX file format.

XlsxWriter can be used to write text, numbers, formulas and hyperlinks to multiple worksheets and it supports features such as formatting and many more, including:

  • 100% compatible Excel XLSX files.
  • Full formatting.
  • Merged cells.
  • Defined names.
  • Charts.
  • Autofilters.
  • Data validation and drop down lists.
  • Conditional formatting.
  • Worksheet PNG/JPEG/BMP/WMF/EMF images.
  • Rich multi-format strings.
  • Cell comments.
  • Integration with Pandas.
  • Textboxes.
  • Support for adding Macros.
  • Memory optimization mode for writing large files.

It supports Python 2.7, 3.4+ and PyPy and uses standard libraries only.

Here is a simple example:

import xlsxwriter

# Create an new Excel file and add a worksheet.
workbook = xlsxwriter.Workbook('demo.xlsx')
worksheet = workbook.add_worksheet()

# Widen the first column to make the text clearer.
worksheet.set_column('A:A', 20)

# Add a bold format to use to highlight cells.
bold = workbook.add_format({'bold': True})

# Write some simple text.
worksheet.write('A1', 'Hello')

# Text with formatting.
worksheet.write('A2', 'World', bold)

# Write some numbers, with row/column notation.
worksheet.write(2, 0, 123)
worksheet.write(3, 0, 123.456)

# Insert an image.
worksheet.insert_image('B5', 'logo.png')



  • 2437
  • 512
  • 12
  • License: BSD
  • Author: John McNamara
  • Last update: N/A