Retrieve deleted file from project

Hi,

I have a project containing a file that I sent to review (manual task). I had to send it a second time because the first review package was accidentally lost. So then I tried to delete the first review task and couldn't find a way. I tried "delete file" on the task itself, but it deleted the whole file (bravo me). Is there a way to retrieve the deleted file and put it back in my project?