Change Excel Copilot AutoSave OneDrive to home directory?

Hi

I wish to access Copilot in Microsoft Excel for Mac, specifically Version 16.94 (25010614).

Upon pressing the Copilot button located in the toolbar, a panel opens on the right side, displaying a message at the bottom that states, "AutoSave is turned off. I only work with files that have AutoSave turned on. Turn it on to continue." accompanied by a button labelled "Turn On AutoSave."

My AutoSave feature is already turned on.

Despite this, I click the button, and a message box appears indicating, "To turn AutoSave on and access your workbook from anywhere, upload your file." The file name field is pre-filled with my file's name. Below this, it specifies that the only option for saving or moving files is OneDrive.

I DO NOT want to use OneDrive for file storage. It is unacceptable to suggest that I must use OneDrive! I want to save my files directly on my $3,500 Apple Mac laptop, not in Microsoft's OneDrive directory!

Furthermore, I am now informed that my Microsoft 365 Annual subscription will see a 45% increase ($50 a year) for AI features that I am unable to utilise!

How can I get my Copilot-enhanced Excel files to save directly to my personal Apple Mac laptop directory?

Cheers

BMG