Macro to run on all workbooks in the folders

Question

Hello

i have a macro workbook in a folder and the other 3 excel files. i need to run a macro with opening the macro workbook using the command button macro will run on the other 3 wrokbooks.

Please help me how to Specify the path

i have a macro

(now i am running the macro indiviudally opening the workbook 1 by one).