Creating files using plain C project in Qt Creator (command FILE)

[anda_skoa]

You misunderstood: this is not about QtCreator at all. It is just an IDE, it creates the executable of your program but is not involved in its execution.

You'll need to check that your program has access to whatever resources it needs from the operating system, e.g. files.
Ask on a Windows forum if you are uncertain how it manages access rights.

Cheers,
_

[Kapsu]

Understood, thank you for the quick reply