We are using Office 2016 (Office 365) on Windows 7 VMware Horizon VDIs. We have a user who has previously been able to take a single instance of Excel, stretch it across both of his monitors, and use it in that widened view. Suddenly now it will not allow him to stretch it that far - when you get to a certain point, the area on the right turns into gray space and no longer shows cells. Also once you hit this point, Excel ceases to function - you can't type, select, etc. You have to narrow the width again before it will act normal.
I don't know why the user was previously able to stretch this allow one worksheet to fill both screens, and now he can not. Is this a limitation of the software, or is there a setting that can be changed? We have tested this on other VDIs and can't make it work on any of them, so I don't believe it's a matter of something changing on his VDI.