Open PBIX File from SharePoint

I´m afraid I had the same problem and this solution is less than ideal.  After syncing files it´s very common for that sync to fail and therefore people are working with different versions of files. 

I have this issue now with a pbix file that lives on sharepoint.  Because we can not open them in sharepoint (which I find incredible), we have had to sync to our computers (as you have suggested) and since then my colleague opens the file and when I do I dont see the updates she´s made.  It remains as it was for me previously.  What is the solution to this?  Is it saving local files somewhere else? 

As a work around I have to open the file, update and then save to my desktop and replace the previous file on sharepoiont.  It´s not really working either.  

It really would be great if I could work properly with a microsoft product within the microsoft infrastructure.  

Can anyone help with this?