We have finally decided to move SharePoint On prem to SharePoint Online. In our on prem site we have BI site where we house 15-20 excel sheets which utlize powerpivot within them which gets refreshed every night.
Since we are moving to SharePoint online, what are the process of migrating them to sharepoint online, if it is supported. If it is not supported what are workarounds or alternate ways to display those in SharePoint online.