A custom PCF control that allows to upload excel spreadsheet and maintain data directly from Power Apps Model-driven. You can change cell data, select/deselect rows in order to create new records in Dataverse. The idea was taken from the PCF Gallery Ideas https://pcfgallery.userecho.com/en/communities/1/topics/113-upload-excel-spreadsheet-parse-its-contents-and-make-the-contents-available-as-an-output-of-the

Prepare an excel file:

You can select rows and update data. You can create records directly with the attributes = header from excel:

Or you can press "Map attributes":

Press "Create records". All unselected rows will still be available for editing:

Press "Select to create" header to check/uncheck rows:

Remember that the program was created for educational purposes. Please use it at your own risk.