Compare two files with different format but same name

[ElTioRata]

I'm trying to find two files that have the same name but a different format between two folder. It's that feature even in the last version? If it exists, how do I enable it?

[sdottaka]

Unfortunately, even the latest WinMerge does not have such a feature.

[ElTioRata]

Damn, that would be a good feature.