This tutorial is for newbie Google docs users...
Have you accidentally deleted or replaced your Google Docs files? Don’t worry you can recover it without using any third party tools through the Google Docs revision history features. To start recovering your missing Google docs files do the following steps:
3 Simple Steps to Recover you Google Docs Files
1. First login to your Google docs account (usually your gmail account)
2. Go to File then, click See Revision History ( ALT + CTRL + G)
3. Now select the Revision Date (with corresponding last time edit) you desired to be restored.By just restoring from different revisions you can consolidate all your files again.
Congrats you’re done!