Collabora Online is a collaborative online office suite
The package for statistical data analysis and applied mathematics
This tool allows the comparison of two excel sheets
Common Resource Grep
Create advanced Excel spreadsheets using .NET
OpenEdge ABL-based Excel Spreadsheet library
The simple, easy-to-implement library to export HTML tables to xlsx
Quality Office Online
MS Office DOC, DOCX, XLS, XLSX, PPT to HTML converter
Open Office / Libre Office Steam tables
PHP/Java Making RTF and HTML (with CSS and Script Code) Files
converts csv-files to LaTeX Code
An Import/Export Utility for MS Access
Fast and simple report generator, from JSON to pdf, xslx, docx, odt