xlsgen lets you read, write, calculate, display and print Excel spreadsheets without using Excel. It beats Excel in speed by orders of magnitude. Virtually any programming environment can be used including C/C++, VB, Java, C#/VB.NET, Delphi and so on thanks to its COM-based programming interface. xlsgen generates Excel files for Excel 97, 2000, XP, 2003, 2007, 2010, 2013 and 2016. xlsgen also exports your spreadsheets as PDF, ODF, XPS, HTML, CSV and XML.

What's new in version 4.5 ?

Full-fidelity reading of OpenOffice/LibreOffice .ods files
R programming environment integration
native PDF charts
XML Import, with/without XPath selection
Traffic lights and gauges
Advanced OpenOffice output (better charts, additional conditional formattings, pivot tables, ...)
Improved currency data type inference from CSV, HTML, XML and JSON files
Forecast chart
Text clipboard
Localized dates

Only for V.I.P