How to use logic Funtion in Filter Excel Table (Not using Filter Data Table)

Hi everyone.

I want to ask your help regarding this matter.
what I want to show in my excel file is this.

what should the expression written here?

I have tried just writing plain “HW” but did not work since it filters the exact value.
what I need is for it to filter cells containing HW.

Thank you very much for your help!

Have you noticed in the Expression editor… it will accept only String[] variables. Try with that you might get the required o/p