Storyline 360 - issues uploading to Sharepoint Comms site

Hi there,

I have been trying to upload a simple interactive one page storyline file to our clients Sharepoint Comms site. I cannot seem to get the file to launch, it downloads automatically everytime.

I have followed and looked at a lot of discession on here. This on in particular: https://community.articulate.com/discussions/articulate-storyline/storyline-360-to-sharepoint. I still cant get it to work. I have tried changing everything to .aspx but still nothing. Am I missing some step?

Thank you