When working with several files is normal also to work in several folders, this can be confusing, expecially in the case where there are different folders with equal file names.
I propose the creation of a "Open file location". This, probably under the main menu, "File", when clicked would open the standard
"file explorer" with the folder that contains the current file already selected.
It would be quite similar to the windows 8/10 "Open file location".