openpyxl

openpyxl is a Python library for reading and writing Excel 2010+ (.xlsx) files. It supports cell manipulation, styling, chart creation, and formula calculations, making it ideal for structured data processing. Commonly used in data analysis, report generation, and office automation, openpyxl performs well due to its XML-based architecture and high compatibility. It's a modern replacement for xlrd/xlwt, especially suited for projects requiring fine-grained control over Excel file contents.

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python-docx

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