Actually, Word does have Merge Two Documents: https://support.microsoft.com/en-us/kb/306484 https://support.microsoft.com/en-us/kb/306484 If you could extract

Actually, Word does have Merge Two Documents: https://support.microsoft.com/en-us/kb/306484 https://support.microsoft.com/en-us/kb/306484 If you could extract the changeset from that then you would be well on your way to supporting version control in Word. One problem I've seen is that people tend to conflate version control and document control, and so they end up using version control systems to prevent revisions to documents, rather than to collate revisions to documents into a history.