Can’t Search By Content

I haven’t been able to search by content. I had trouble with a few important formats, such as odt, in Finder Search, but this is worse. I checked the documentation, and I’m supposed to select which formats it will search, but I checked the preferences, and there isn’t anywhere to select which formats it will search. Apparently it can only search 6 file formats, but I am not sure which 6, aside from txt.

Marja E about EasyFind