I edited a downloaded fla in animate and after saving it, my progress is gone

Hi,

I downloaded a fla to make some fnf mods, but after saving my edits that i made, i reopened it and realised my progress is gone. what do i do?

Moved from Using the Community (which is about the forums) to the correct forum... Mod
To find a forum for your program please start at https://community.adobe.com/