Collabora Online - view only Microsoft, while edit ODF-Files

Is it possible to allow editing of OpenDocument formats (odt,ods,odp, …) while the Microsoft proprietary Office formats(doc,docx,xls,xlsx …) are open read-only in Collabora Online?

Alternatively, it would be ok to block interaction with Microsoft Office formats at all.

We use Nextcloud 20 with Collabora Development Edition (docker installation)