How to host a htm page with SharePoint when the files are generated from excel. (Cant change them into aspx..)?

Is there a way to host static html using Office 365 sharepoint?

Hello dear community, i have a similar problem….
(Please only real comments… i dont known what to do for weeks.

Okay… i want to publish a htm page on sharepoint.
The problem is that the file cannot be opened, only downloaded.
In the post of the link is how it would be feasible…
..but i can’t change every file in aspx because they are tied to the folder.
The folders were generated by excel and the websites are also from excel.

I dont know what i have to do….