In blender: how to 'recover' a UV map?

Hello everybody!
I was baking a surface texture in blender, but unfortunately closed the software and did not save the .blend file with the new surface UV texture I had created... Now I need to make modifications to the final texture, but if I open the .blend file again, it doesn't show the second UV texture I had created (obviously).
I was wondering, is there a way to force it to use the UV map I had previously created, maybe by loading the UV texture somewhere? Cause it would be quite a work to reselect all the faces and recreate the UV map...
Thank you, all!

If you've used blender since, then it's lost. There's an option in the file menu to "Recover last session" which would help if you quit and thought "oops". You could open Blender, recover and then save. But otherwise, it's like all unsaved work and is gone for good. You'll have to redo it, you can load the texture into the UV Editor as a guide for the layout.

Thank you, Domino... and yes, I tried the last session, but unfortunately I had opened something else in between, and so it didn't work.
I will have to roll up my sleeves and redo it

(btw: thank you very much for your scripts, too )