Error : “Unable to cast COM object of type 'Microsoft.Office.Interop.Excel.ApplicationClass' to interface type 'Microsoft.Office.Interop.Excel._Application'…” When attempting to export to Excel.
Product Family: Act!
Product: Act! Pro, Act! Premium
Version: v16 and later
Third Party: Microsoft Excel
Microsoft Excel was installed after the Act! installation.
- Uninstall and reinstall Act!. For informatoin on uninstalling/installing Act!, refer to the articles below:
How do I uninstall Act!?
How do I install Act!?
- Attempt to export to Excel to test