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A standalone, portable Ada package for producing Excel spreadsheets
Excel_Out is a standalone, portable Ada package for writing Excel spreadsheets with basic formattings and formulas, easily and programmatically.
Enables the automatic production of reports.
No interaction needed with Excel or MS Office.
More information on: http://excel-writer.sf.net
Alire crate: https://alire.ada.dev/crates/excel_writer
Mirror: https://github.com/zertovitch/excel-writer
C++ library for creating XLSX files for MS Excel 2007 and above.
...The library is written in C++ with using STL functionality and based on the ZIP library (included), which has a free license:
http://www.codeproject.com/Articles/7530/Zip-Utils-clean-elegant-simple-C-Win32
This library is distributed under the terms of the zlib license:
http://www.zlib.net/zlib_license.html