Hi @Ammar Mahmoud ,
In Reporting Services, it’s not supported to change .XML(or .xlsx) file to .rdl file to generate a report. Since the XML format of report doesn't contain data source and dataset information, it contains field values used by tablix items. In your scenario, you can use the XML file as data source to create a report manually. Please refer to links below:
XML Connection Type (SSRS).
SQL Server Reporting Services XML Data Source and DataSet.
Best Regards,
Joy
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