After you file

If you did not keep a copy or separate file of the original return then there is no original return to see any longer.   Using the downloaded version you can save a file of the amended return with a distinct file name and undo the changes to get back to the original.  

 

https://ttlc.intuit.com/community/amending/help/how-to-amend-change-or-correct-a-return-you-already-...