Libxlsxwriter: A Nodejs library for creating Excel XLSX files (Port from C libxslxwriter).

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.
• Worksheet PNG/JPEG images.
• 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.

Here is an example that was used to create the spreadsheet shown above:

const xlsxwriter = require("xlsxwriter4node");

console.time("time")
console.log(xlsxwriter.hello())
console.timeEnd("time")

See the full documentation for the getting started guide, a tutorial, the main API documentation and examples.