Synkronizer - How to compare two excel files with Synkronizer: the leading excel comparison and merging tool in the market. Download and try for free.
Wondershare PDFelement - All-in-one PDF editor
DiffEngineX - DiffEngineX is a fast utility that finds the differences between the formulae, constants, defined...
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.
xlCompare - Perform various operations with data on your worksheets in a seconds. xlCompare has a number of functions from Comparing, Merging and Updating records to Debuging Calculations in your workbook.
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.