Best Open-Source Python Libraries for Excel

XlsxWriter

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')

workbook.close()