Choose "Forms for Excel" from Office 365 Forms
Currently, to create Forms for Excel one needs to open Excel from O365; for "regular" Forms you use the Forms tile. It would be great if we could go to Forms and, when creating, choose Forms for Excel.
Ancillary to this; because Forms for Excel, once created, show in Forms, it would be beneficial to be able to tell from the tile which kind of Form one is. Currently, the only way I'm aware is that if you go to Responses, Forms show the dark green icon and the Forms for Excel show the light green one to show that the spreadsheet is in the cloud.