There are known incompatibilities between Office applications and Adobe Acrobat, particularly with the SaveAsAdobePDF.xlam add-in. This add-in can cause issues when opening Excel and other Office applications, especially after updates to macOS like Tahoe 26.2. To resolve this, you may need to disable or remove the Adobe PDFMaker add-in from Excel. You can do this by following these steps:
- Open Excel and go to the Tools menu.
- Select Excel Add-ins.
- Uncheck the SaveAsAdobePDF.xlam add-in if it is listed.
- Restart Excel to see if the issue persists.
If the problem continues, consider checking for updates to both Office and Adobe applications, as compatibility issues can often be resolved with the latest versions.