How do I set file association in Xfe to be the same as those in Files?

A bit of a background, I just installed Ubuntu 20.04, whose default file manager is Files 3.36.3. But, I really prefer the user interface of Xfe. So, I installed Xfe and everything works well, until I need to start opening different types of files (e.g., pdf, mp4, etc.). I notice that in Files, the software to open these files are automatically recognized, and even better, I can also choose a different software to open them. However, in Xfe, the file association is not automatic, and even when I tried to do "Open With", there's no option for available software.

I've tried looking in Google on how to resolve this issues, but I can't seem to find a solution for this.

Any suggestion on what to do would be greatly appreciated.

Thanks!

Edit > Preferences > Programs

Hi!
If you click on file with right button on file and you select Properties, you can establish file associations.
Now i can't say you more with precision because i have the software in italian.
Bye
Francesco bat