Exporting and then Importing a Board loses fidelity

If I export a Board to Excel format, and then import the same, the resulting new Board looks completely different from the original Board. This should be fixed - the fidelity of the Board should be preserved. Or an alternative Export/Import method should be provided.

I need the above functionality to copy a Board to a customer account where I don’t have admin access (so the Cross account copier doesn’t work).