Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Wondershare PDFelement - All-in-one PDF editor
Spreadsheet.com - Spreadsheets that come alive as applications
Foxit PhantomPDF - Edit PDF files with our feature-rich PDF Editor. Download Foxit PDF Editor to convert, sign, scan / OCR & more. A speedy PDF Editor alternative to Adobe Acrobat.
Rows - The spreadsheet where teams work faster
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.