Office 365 On Line Ver of Excel

We recently migrated our users to O365 with E1 licenses which only allows access to the online versions of the various Microsoft applications which ahve limited fuctionality. Specifically we have an issue with not being able to open grid downloads with the online version of Excel. It doesn't seem to like the html that is embedded.

Looking for someone that has experienced this issue and has a work around. Or a way to chnage the output of these downloads?

we are using 9.2 with 8.58.21 peopletools

@Pete Dunton I fat fingered the entry it actually 8.56.21