find string in vba module from outside excel

[kato01]

Hello,

I have this excel file (*.xlsm) that I lost track of it (don't know where it is).
I am using a search application "Effective File Search" which allows searching for a string inside a file.
It looks like it works for ASCII files but not for binary files.
I have specific keywords that I can use.
Is there any search utility that can find a string in the vba module, inside an xlsm file?

Thank you

Kato01