Just curious--is there a reason you want to use the .xlsb file type? My understanding is that it is unsupported by most third parties, so I wouldn't be surprised if Tableau doesn't fully support it.
Main reason is time when open/save file, and size.
In this example (250.000 rows and 70 columns) .xlsx size is 103.680Kb, and .xlsb size 24.340 (>25%, >4 times faster)
I have seen .xlsx files with size >200.000kb, when saving to net drive (even local drive), time is relevant.
I have a similar question about the limit of a xlsb file to get updated successfully in terms of size/rows/columns .