libxlsxwriter

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 dropdown 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.