Check that your Microsoft Office is compatible

1. Open Sage 50 Accounts, on the menu bar click Help, then click About.
2. Under Program Details, note the version number.
3. Use our Microsoft Office and Sage software compatibility guide to ensure your version of Microsoft Office is compatible with your Sage 50 Accounts.

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Manually register Microsoft Excel

1. Close Sage 50 Accounts, then press the Windows key + R.
2. Enter:
   • 32bit Excel - "C:\Program Files (x86)\Microsoft Office\root\Office16\Excel.exe" /regserver
   • 64bit Excel - "C:\Program Files\Microsoft Office\root\Office16\Excel.exe" /regserver
     NOTE: If you’re using Excel 2013 change the 'Office16' to Office15.
3. Then click OK.

If the issue continues after registering excel.exe, you first go ahead and uninstall and reinstall Microsoft Office. Then completely uninstall Sage 50 Accounts and reinstall it.

If you need any more help reinstalling Microsoft Office, refer to your local IT administrator.

TIP: This issue has also been resolved by using the "Quick Repair" function in the Microsoft office. Open Microsoft's Repair article >