When using Teams to open Visio files by using the Open in Visio Online option it will download the file rather than opening it in Visio Online. I have tested this on two machines on different accounts - is anyone else experiencing this?
AFAIK this is not a known issue to the Microsoft Teams team. Known Issues here:
Similarly, if I attempt to open a Visio (*.vsd 2010 version) file (via selecting Open in Visio), Teams does not recognize that I have Visio 2010 installed locally and states "You'll need a new app to open ms-visio". It then forces me to look in the App Store for Visio (which isn't there). Teams does allows me to preview the Visio diagram, but I can only edit the file if I manually download it and then upload it back.