Thanks for that! I've checked the file and it is a standard 14 channel wave file. Acoustica Premium Edition is currently limited to maximum 8 channels in the clip editor. The best way would be to open this in as a multitrack session, but I don't know if these channels can be grouped together in e.g. stereo pairs? I see that there's a "JUNK" tag in the file. These are used to store additional data that other applications shouldn't care about. It is possible that RØDE stores some additional information there. If there is no additional information there, Acoustica won't be able to tell a multi-channel file from a multi-track file. I'll reach out to RØDE and ask for more information.
Best,
Stian