Excel Workbook: The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine. The 64-bit version of the Access Database Engine 2010 Access Database Engine OLEDB provider is required to connect to read this type of file. To download the client software, visit the following site: https://go.microsoft.com/fwlink/?LinkID=285987 It looks like you tried to open a XLS file with Power BI. Yeah, no. XLS is forbidden territory, you can't just walk in there. You have to be sneaky. Here's the trick: Source.xls --> Excel-file located in OneDrive - -> Power BI Did you see it? It's right there, in between. Let's zoom in: XLSX-file located in OneDrive (or any other cloud storage for that matter) that imports the XLS file using Power Query It's really that simple. Locate the XLS file you wish to use. Import it into a cloud stored XLSX format Excel-file. Use desktop Excel to create the connection with Power Query. Read the XLS as Web.Contents and the...