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.

It occurs when a module used in the project is hidden or protected or if the code written in Microsoft Excel is not targeting your application’s architecture. For instance, the excel file you are ...

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