Spreadsheet
File Format APIs for C++
C++ APIs for Excel & OpenOffice Spreadsheets
Read, Write, Modify & Manipulate Microsoft Excel XLS & XLSX files via open-source C++ APIs.
Spreadsheet File Format APIs for C++ Include
OpenXLSX
C++ implementation gives software developers the power to read, write, create and modify Excel files as well as data formatting with lesser dependencies.
Xlnt
Provides software developers the capability to generate, read, modify and manipulate Excel XLSX files inside C++ applications.
Libxlsxwriter
A powerful C Spreadsheets library that allows to work with Microsoft Excel 2007 as well as Excel XLSX files inside your own applications.