Hi hperacha,
We appreciate that you posted back and confirmed the information with us. We also appreciate that you spent your precious time doing those tests.
According to the screenshots you provided, you are not using the latest version of Semi-Annual Enterprise Channel, we have tested again on our side with the latest version of Semi-Annual Enterprise Channel, and we can see Sheet View, as shown below:
So we’d suggest you update your Excel to the latest version(2102 (Build 13801.20960)) to check if you can find this feature.
Please feel free to post back and let us know if it is help.
Best Regards,
Sukie