Loading/displaying .bag files in QGIS

[Meghan Rochford]

Hello

I have been sent bathymetry data in .bag format and have not come across this format before. 

When I try to load it into QGIS (version 3.14.0) it loads but does not display. I load it through the Data Resource Manager as a Raster. 

Am I doing it incorrectly? Should it be loaded in some other way? 

I have tried to attach the file but it may be too large.

Cheers

Meghan