yardie said text file, not binary files. Not sure what text editor doesn't bark at a 10GB binary file. Probably Sublime would be alone in handling it, but don't have it in front of me right now to test.
there is a difference?
If you open a (small) image file with notepad you will see a lot of gibberish. This is what happens when you try to view a binary (in other words, non-text) file as text.