xlslib ☆

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Description:
C++/C library to construct Excel .xls files in code

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: excel xls c++ library file-format

Install: brew install xlslib

About:
Xlslib is a C++ and C library designed for generating Excel .xls files programmatically without requiring Microsoft Excel. It provides a robust API for creating spreadsheets, writing data, and formatting cells. This library is ideal for applications needing automated report generation or data export in the legacy Excel format.

Key Features:

Native C++ implementation with C bindings
No external dependencies or Excel installation required
Supports writing data, formulas, and cell formatting
Cross-platform compatibility

Use Cases:

Server-side report generation in C++ applications
Exporting database query results to Excel format
Automated data logging and spreadsheet creation

Alternatives:

libxlsxwriter – More modern alternative focused on the newer .xlsx format, whereas Xlslib targets the older .xls format.
Apache POI – Java-based library; Xlslib is preferred for C/C++ native environments.

Version History

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