I use PowerBI and i have old tools that send data in XLS file. PowerBI for automatic refresh from onedrive, as i know, doesn't support XLS but just XLSX, so i have to convert it in Xlsx fomat manually.
It will be a very good idea to have convert faction in Flow for Excel format and for the others applications.
I have exactly the same issue, I have legacy systems outputting data in XLS format, am using MS Flow to save to OneDrive as source data for PowerBi dashboards. At present I'm also having to convert manually as PowerBI automatic refresh doesn't support XLS files only XLSX.
This would be tremendously helpful. I'm running into a wall with PowerBI service refresh of SharePoint hosted XLS documents. I receive the following message.
I'd love to see this being built. The error messages in Power BI when it attempts to refresh an XLS are not helpful. Being able to fix the file using Flow would avoid a lot of Power BI pain.