Bob Le Bricodeur

Seems you're right :https://answers.microsoft.com/en-us/msoffice/forum/msoffice_excel-mso_mac/vba-with-excel-for-mac-calling-the-file-dialog/e8cb0bdb-a0d2-4379-842a-d6b9efe9f66f

Can you try to adapt the macro with code provided here : https://nhcuong.wordpress.com/2012/03/27/use-an-open-file-dialog-in-vba-with-both-mac-and-windows/ I can't test, no Mac here...

I'm sorry but you'll have to wait that somebody that is able to code and test provide his solution. I can't develop blindly. Regards