Excel cannot assign macro to a button

Question

I have a problem with my excel file (I think it's corrupted). In one file, I cannot assign a new or an existing macro to any new buttons. I get the error that the macro cannot be found, even though it is definitely saved in the right place. At the same time existing buttons work with existing macros, only new ones don't with neither new macros or old ones. What can be done?

Thank you

Answer 1

I found the answer. I had to move the excel file to a different location and it worked.