Possible Corrupted File

[Meadhbh Hayden]

Hi, today i opened a word file (ODT format) and found that all my text had
been replaced with hashtag (#) symbols. I was also shown an ASCII filter
pop up. I have looked at some support posts in the forum and it seems to me
my file may be corrupted. Is there any way i can get my file back? I have
over 30 pages of writing that i would rather not rewrite!
(p.s; i am not that great with computers so if you have instructions for
me, please use english thanks)