Export to Excel- Missing Table Tabs & How to export more than one Group Tab

Hi

Not sure why two Table Tabs were missing from the export to Excel.  Please advise where the issue is. 

How can I export more than one Group Tab? I want to export 'Rock Core'?

I want to show Coring from 0.8-21m under method, where can I enter to show this?6433.2041_bh22.gpj