Excel Exceptions

Error loading type library/DLL. (Exception from HRESULT: 0x80029C4A)

Issue: Unable to cast COM object of type ‘Microsoft.Office.Interop.Excel.ApplicationClass’ to interface type ‘Microsoft.Office.Interop.Excel._Application’. This operation failed because the Query Interface call on the COM component for the interface with IID ‘{000208D5-0000-0000-C000-000000000046}’ failed due to the following error: Error loading type library/DLL. (Exception from HRESULT: 0x80029C4A (TYPE_E_CANTLOADLIBRARY)).

Solution 1: “Repair” Office Installation from the Add/Remove programs in Control Panel
  • Right Click on Start Menu

  • Click Apps and Features

  • Search Microsoft Office (either Office 2007, Office 2010, Office 2013, Office 2016 or Office 365 and so on…)

  • Click Microsoft Office

  • Click Modify
  • Click Repair
Solution 2: “Uninstall” Office Automatically


Do this only if the Solution 1 fails

  • Download the automated tool.

  • Run the SetupProd_OffScrub.exe file.

  • Select the version you want to uninstall, and then select Next.

  • Follow through the remaining screens and when prompted, restart your computer.

  • After you restart your computer, the uninstall tool automatically re-opens to complete the final step of the uninstall process. Follow the remaining prompts.

  • If you need to reinstall Office, select the version you want to install and follow those steps: Microsoft 365, Office 2019, Office 2016, Office 2013, Office 2010, or Office 2007.

The remote procedure call failed. (Exception from HRESULT: 0x800706BE)

Issue: Error in Syncing the model. The remote procedure call failed. (Exception from HRESULT: 0x800706BE).


Reason: The problem was caused by third-party Excel COM plug-ins.

Solution: How to disable the plugin: Excel > File > Options > Add-ins > Manage, then choose “COM add-ins” > Go. And then uncheck the problematic plugin.