Export/Import multilingual 3.2 for Opencart 2.1.0.1

I export products using Export/Import (v3.2) from Opencart 1.5.6.1. When I attempted importing into Opencart 2.1.0.1, the following error was thrown:

Uploaded spreadsheet file has validation errors!
See also 'System > Error Logs' for more details.
No server data has been changed.

Error Log:
Export/Import: Invalid header in the Products worksheet

Any ideas as to what I need to do to resolve this issue please?
Thanks.