Deleted pages file

Ok so I just spent 2 hours typing a lab paper for one of my classes in pages and it needed to be in .docx format. So stupid me decided to try an unconventional way of converting it, I found the file in finder and right click>more info on the file and then changed the file extension from .pages-tef to .docx. And it erased all the data that I had entered into the file even though I had saved the file before I did this all. But it won't let me revert it to an older save or anything. Is there anyway that I can get my information back? Any help is greatly appreciated.