You can restore a previous version of a document to make it the current version by going to Projects > Documents > Information > Version History > Restore.

1. From the home page, under Projects, select the name of the project you want to open.
   Alternatively, go to the main menu in the upper left-hand corner, select Projects, and then select the name of the project you want to open.
   The Dashboard for the project appears.
2. Select the Documents tab.
3. Navigate to and select the check box for the document you want to work with.
4. Click the Information button in the upper right corner.
   The Properties pane appears.
5. Click Version History.
   The Document Versions window appears.
6. Locate the version of the document you want to restore and click Restore.
   Tip: You can click on the document name to view that version of the document before you restore it.
7. Click Close.