Apache OpenOffice - Apache OpenOffice is an open source, office document productivity suite.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
SoftMaker Office - SoftMaker Office is one of the most powerful and reliable office suite that is fully compatible with the MS Office Suite.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
SSuite Office - SSuite Office is called to be one of the most accomplished software developers for both beginners and professionals alike.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.