Go (golang) library for reading and writing XLSX files
Fast Python reader and editor for ASAM MDF / MF4 (Measurement Format)
C++ library for creating XLSX files for MS Excel 2007 and above.
Extension for importing, viewing, slicing, dicing, and charting JSON
Extract data in CSV format from PDFs
Small, fast Java library for reading and writing CSV files
Converts XML to CSV using a spreadsheet app