Sometimes while troubleshooting QuickBooks Desktop issues it may be necessary to repair Microsoft Office if you have errors relating to Excel integration, Payroll Excel reports, emailing through Outlook, or Word letter template problems.
Solution 1: Repair Office programs
Solution 2: Clean install Office Programs
If solution 1 (repairing Office) does not resolve the issue, you may need to consult Microsoft or your IT professional to perform a clean uninstall/reinstall of your Office installation. Since these steps are more complex than repairing Office, Intuit does not support or walk customers through these steps.