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How to Activate Excel 16.43 on macOS High Sierra
Question details
The user needs to activate Microsoft Excel version 16.43 on a Mac running macOS High Sierra, but is being prompted to sign in and purchase a license.
- Product
- Microsoft Excel 16.43
- Device & OS
- macOS High Sierra
- Scenario
- Activating a standalone or Microsoft 365 version of Excel on an older Mac operating system.
- Observed behavior
- Excel blocks editing capabilities and prompts the user to sign in and purchase a valid license to continue using the software.
Ensure you have your Microsoft account credentials ready and a stable internet connection before troubleshooting your license activation.
Clear old license files using the Microsoft License Removal Tool
If you have an active Microsoft subscription but cannot activate Excel, clearing old license caches often resolves the issue.
macOS sometimes retains outdated or corrupted license files, preventing new activations from processing successfully.
Download the official Microsoft Office License Removal Tool from the Microsoft support website.
Open the downloaded .pkg file and follow the on-screen prompts to safely remove the hidden license files from your Mac.
Restart your Mac, open Excel 16.43, and sign in with the Microsoft account associated with your active license to reactivate.
Check your Microsoft account for an active license
Ensure that your account actually holds a valid Microsoft 365 subscription or a standalone Office license before attempting activation.
Bypass sign-in errors by creating an Outlook alias
If your account has a license but sign-in fails, adding a new alias can force the authentication system to recognize your credentials.
Try WPS Office: A Free and Lightweight Alternative for Mac
If you are unable to purchase a Microsoft license or your older Mac struggles with activation issues, WPS Office provides a free, lightweight, and highly compatible alternative. Enjoy powerful tools for word processing, spreadsheets, and presentations without the hassle of complex activations.
- 1. Download WPS Office: Visit the official WPS website and download the free macOS installer.
- 2. Install on your Mac: Open the downloaded package and drag the WPS Office icon into your Applications folder.
- 3. Open existing files: Launch WPS Office and directly open your existing Excel documents to continue working without activation barriers.
Frequently Asked Questions
Can I buy Excel 16.43 as a standalone product?
Microsoft typically promotes Microsoft 365 subscriptions, but you can sometimes purchase standalone licenses. Check the Microsoft 365 product comparison page for available standalone purchasing options.
Why does Excel 16.43 say I need a license when I already have an active subscription?
This usually happens when corrupted or outdated license files are cached on your Mac from previous installations. Running the Microsoft Office License Removal Tool clears these files and allows for a clean activation.
Is Excel 16.43 the latest version supported on macOS High Sierra?
Yes, version 16.43 is historically the last supported release of Microsoft Office for macOS High Sierra (10.13.6). To install newer versions of Excel, you will need to upgrade to a more recent macOS version.
