If you see Microsoft Visual Basic, Run-time error, Class not registered in Office Excel, follow these solutions that have helped many fix the issue.

Fix Exception from HRESULT 0x800A03EC Excel error To fix error code 0x800A03EC in Microsoft Excel when trying to export a file, here are the solutions you can use: Check your VBA code.

Use this VBA error-handling routine to make sure no errors disrupt the code.

Correcting Microsoft VBA code is easier if you understand what the basic error messages mean.