I can't open my file. It says It may have been damaged.

[Colin32175241mcso]

I was working on my 1.3 mb file i'd been working on for months and all of a premiere started glitching out and I couldn't read anything. I closed the program and when I tried to reopen the file, it kept saying "File won't open. it appears to be damaged." The the autosaves gave me the same message. I tried importing the file into new project and not only did it not work, when i cloed and reopened said new file, I recieved the same message. The file is currently sitting in a 1 terabyte flashdrive. Idk if this had anything to do with the file size  (i started making a good number of nested sequences) or it has something to do with the flashdrive. (I created a new folder and put some photoshop files into it, then when i opened it minutes layer it was gone. I'm really desparate here and just hoping someone has a solution because I'm looking at another weeks worth of work on something I thought was only going to take another day to finish. Any answers are highly appreciated. 

[MyerPj]

It doesn't sound promising. Do you mean all this time you've been working off a 'flashdrive'? Does that mean a USB stick?

You didn't say anything about hardware. Is it a secret, they type of computer you are using? Mac or PC? How about some hardware specs, version of OS and PP, all the typical stuff that might help.

[Colin32175241mcso]

yeah it's a usb stick. I'm working on a pc; An MSI notebook laptop. It has 400 gb of storage which is why I'm using the usb stick.

[Peru Bob]

Unfortunately, USB thumb drives do become corrupted occasionally.

Just a long shot:

Try plugging it into a different USB port or opening on a different computer.

[Colin32175241mcso]

So I just found a version oif the project that did work and spent the entire day on finishing a portion of it. i tried eporting a chunk of it to make the file size bigger. The export failed every time and after I closed it, now that file and all the backup files won't open.

[Warren Heaton]

How is the Flash drive formatted?

I forget the exact file size limits, but if it's formatted as FAT-16 or FAT-32 then it's not formatted in a way for work with video files.  At the very minimum, it should be ExFAT.  Since you're on a Windows based laptop, NTFS would be better.

[Colin32175241mcso]

so you're saying I need to encrypt it?

[Colin32175241mcso]

these are the properties btw