How do I change the default open behavior of a workbook?
Tap 
for a workbook, tap Open Preference, and
then tap Native or Compatibility
Mode. You must set this preference for each workbook if
you want to change the default open behavior.
for a workbook, tap Open Preference, and
then tap Native or Compatibility
Mode. You must set this preference for each workbook if
you want to change the default open behavior.