Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello Terry Van Nortwick,
I understand that you recently purchased Office 2016 for your MacBook Air running macOS 11.7.10. Although Word installed successfully, Excel will not install, and you can only view existing workbooks without editing or saving them.
I’m afraid Office 2016 for Mac is no longer supported. Editing and saving now require macOS 12 or later and Office version 16.83 or later, so Office 2016 on macOS 11.7.10 cannot meet these requirements.
See more: Update Microsoft 365 or Office on your macOS or iOS device
First, select Apple menu > About This Mac > Software Update and check whether your Mac can upgrade to macOS 12 or later. If it can, update macOS and then install a supported desktop version of Office, such as Microsoft 365 or Office 2024. Your files can still remain stored locally on the Desktop; OneDrive or Excel for the web is not required.
If the Mac cannot upgrade beyond macOS 11, unfortunately there is no supported Microsoft Office desktop version that will restore reliable editing and saving on that computer. You would need to use Office on a newer supported Mac or PC. If you purchased Office 2016 for Mac online recently, consider contacting the seller to request a refund.
I know this may not be the answer you were hoping for, but I hope it clarifies the situation and sets clear expectations. Thank you for your patience and understanding.
Best regards.