Trouble with "XLS Batch Register Objects" (repeated headers)

We have somehow foreseeable trouble when using the “XLS Batch Register Objects” option to upload a bunch of samples:
When using object definitions that reuse property labels, the upload fails due to repeated headers. In our case, we use a material definition object that is built from multiple layers, each one described separately but always with the same properties (material, thickness, etc.).
Is renaming the labels the only way to solve that? Or is there a way to work with the codes instead?


Dear Volker,
it is possible to use codes instead of labels in the headers.
Both are supported.