You will have to explain your problem in a lot more detail.
I tried to change my previous post but I didn’t make it in 180 secs, so here is a replacement!
What was the exact sequence of actions that you did?
What exactly do you mean by “can’t read it” - does it display as junk?
Find the file in explorer - does it have a suffix? These suffixes tell you what sort of application can open the file - it may not be a txt file at all, and so won’t make sense if you open it with NOTEPAD++
David