How to open Photoshop Temp File without extension

[Guest]

Hi Adobe Community,

My photoshop recently closed with some files open. I supect windows update to be behind that but can't be sure.

I found in the %temp% folder couple files thats look interresting but no way to open them or be sure what it is.

Files are:

     - Photoshop Temp21185767124 (36 864 KB)
     - Photoshop Temp745149862732 (1 164 672 KB)

     - Photoshop Temp1555241910196 (885 632 KB)

      - Photoshop Temp556628194484 (96 640KB)

     ... and there're 2 more at 0 KB.

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Using:

      - Photoshop CS5 12.1 x64

      - Windows 7 Service Pack 1

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Looking for a way to get those files back or at least know what they are...

Thank you all

Martin

[Noel Carboni]

They're temporary scratch files that can be safely discarded.  There is nothing useful you can do with them.

With Photoshop CS6 there may be auto-save recovery files as well nearby, but they're always .psb files, and you don't have to do anything special - Photoshop will automatically open them the next time you run it after a crash.  Photoshop CS5 did not have the auto-recovery feature; if it crashes you lose your work.

-Noel

[Guest]

Hi Noel!, thanks for taking time to answer.

So from what I understood, there's nothing at all I can do with those files... thats's soooooo sad

Any idea why photoshop keep files that large if we can't use them?

Thanks again!

[Noel Carboni]

Those are its scratch files.  It uses them to store data when it is running, such as old history steps and anything it can't keep in RAM.

Normally it's supposed to clean those up next time you run it, but sometimes they get left laying around.

-Noel

[station_two]

Photoshop creates its scratch disk the very instant you create a new document or open an image file. It will instantaneously claim the scratch disk size it thinks you'll need based on assumptions the application makes based on the size of the document, how many layers you have, history states, etc.

The scratch disk size can be 100 times or more the size of your largest file or even more, multiplied by the number of files you have open.

[Noel Carboni]

Minor terminology issue:  They are more aptly referred-to as scratch files on the disk you've identified as the scratch disk in the Performance preferences dialog.

-Noel

[station_two]

You are fundamentally correct, of course.  I usually use the term scratch disk or scratch disk file loosely and only as a means to connect the concept to the Scratch Disks preference for the benefit of those users who may not be familiar with it.

Some instructors also do that in their tutorials.