Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Wondershare PDFelement - All-in-one PDF editor
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.