GitHub - exceljs/exceljs: Excel Workbook Manager

Merged Add pivot table with limitations #2551. Many thanks to Protobi and Michael for this contribution! Merged fix: styles rendering in case when "numFmt" is present in conditional formatting rules (resolves #1814) #1815. Many thanks to @andreykrupskii for this contribution! Merged inlineStr cell type support #1575 #1576. Many thanks to @drdmitry for this contribution! Merged Fix parsing of boole

[braitom]

“Read, manipulate and write spreadsheet data and styles to XLSX and JSON.”

[efcl]

Excelファイルの操作ライブラリ。 Excelファイルの作成や読み取りができる

[tkrd]

Excelファイル（xlsx）をそのまま読み込んだり、書き出せる。node.js用。