Using Excel on MacBook pro mid 2012
excel keeps asking me to up[grade to IOS 17, I dont seem to be able to this, is the mac out of date now?
MacBook Pro 13″, macOS 10.15
Question marked as
A mid 2012 MacBook Pro can be upgraded to Catalina 10.15.7 but no later.
See the following from Identify your MacBook Pro model - Apple Support
MacBook Pro (13-inch, Mid 2012)
Model Identifier: MacBookPro9,2
Part Numbers: MD101xx/A, MD102xx/A
Newest compatible operating system: macOS Catalina
Also note that the iOS 17 mentioned in your post is an iPhone operating system version.
The latest macOS is macOS Sonoma 14.3.1.