Libxlsxwriter is a C library that can be used to write text, numbers, formulas and hyperlinks to multiple worksheets in an Excel 2007+ XLSX file. It supports features such as: 100% compatible Excel XLSX files. Full Excel formatting. Merged cells. Defined names. Autofilters. Charts. Data validation and drop down lists. Conditional formatting. Worksheet PNG/JPEG/GIF images. Cell comments. Support for adding Macros. Memory optimization mode for writing large files. Source code available on GitHub. FreeBSD License. ANSI C. Works with GCC, Clang, Xcode, MSVC 2015, ICC, TCC, MinGW, MingGW-w64/32. Works on Linux, FreeBSD, OpenBSD, OS X, iOS and Windows. Also works on MSYS/MSYS2 and Cygwin. Compiles for 32 and 64 bit. Compiles and works on big and little endian systems. The only dependency is on zlib.

Libxlsxwriter is a C library that can be used to write text, numbers, formulas and hyperlinks to multiple worksheets in an Excel 2007+ XLSX file. It supports features such as: 100% compatible Excel XLSX files. Full Excel formatting. Merged cells. Defined names. Autofilters. Charts. Data validation and drop down lists. Conditional formatting. Worksheet PNG/JPEG/GIF images. Cell comments. Support for adding Macros. Memory optimization mode for writing large files. Source code available on GitHub. FreeBSD License. ANSI C. Works with GCC, Clang, Xcode, MSVC 2015, ICC, TCC, MinGW, MingGW-w64/32. Works on Linux, FreeBSD, OpenBSD, OS X, iOS and Windows. Also works on MSYS/MSYS2 and Cygwin. Compiles for 32 and 64 bit. Compiles and works on big and little endian systems. The only dependency is on zlib.