fix: Reinstate the filename format setting

[dzx-dzx]

Should fix #127

By the way, what does checkIfOutputAlreadyExists do? It doesn't seem to prevent old files with the same name from being overwritten despite this check.

[Myzel394]

Thank you for the fix! The PR looks good, I'll need to test it and then we can merge this.

By the way, what does checkIfOutputAlreadyExists do? It doesn't seem to prevent old files with the same name from being overwritten despite this check.

I think I wanted to do a check indeed, but seems like I haven't added that yet. Thanks for pointing me to this

[dzx-dzx]

Umm...Would you consider reviewing this PR in recent days? I must say this is a rather important functionality for me.