'contents contain' with .numbers files

Hi, so the question is more or less in the post subject: It seems like Hazel is not able to search the content of a .numbers table.
I do our office accounting with programmed .numbers files, and Hazel needs to read the .numbers content for a specific letter phrase. But the rule is not activated.

The numbers file/phrase is being found when searched with the finder search.

I tried contain and contain match.

Any tips?

.numbers files are not text files that are readable by Hazel. It is a proprietary format. The reason it works in Finder/Spotlight is because Numbers probably provides a Spotlight importer for those files and exports them to Spotlight.