ChatWhale - Gamify your customer communication and loyalty rewards
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Chatra Messenger - Enjoy the benefits of live chat even when you’re offline.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.