Best Open-Source Python Libraries for Excel

openpyxl

Introduction

openpyxl is a Python library to read/write Excel 2010 xlsx/xlsm/xltx/xltm files.

It was born from lack of existing library to read/write natively from Python the Office Open XML format.

All kudos to the PHPExcel team as openpyxl was initially based on PHPExcel.

Security

By default openpyxl does not guard against quadratic blowup or billion laughs xml attacks. To guard against these attacks install defusedxml.

Mailing List

The user list can be found on http://groups.google.com/group/openpyxl-users

Sample code:

from openpyxl import Workbook
wb = Workbook()

# grab the active worksheet
ws = wb.active

# Data can be assigned directly to cells
ws['A1'] = 42

# Rows can also be appended
ws.append([1, 2, 3])

# Python types will automatically be converted
import datetime
ws['A2'] = datetime.datetime.now()

# Save the file
wb.save("sample.xlsx")

Documentation

The documentation is at: https://openpyxl.readthedocs.io

• installation methods
• code examples
• instructions for contributing

Release notes: https://openpyxl.readthedocs.io/en/stable/changes.html