Import grades as a batch from a separate file. See How do I format my file for importing grades into Gradebook? for information about preparing the import file.
Select Gradebook from the Tool Menu of your site.
Note: The import file must be in a specific format in order to import correctly. It should be a .CSV file and contain the appropriate student and Gradebook item data. See How do I format my file for importing grades into Gradebook? for information about preparing the import file.
A summary of Gradebook items with expected changes will be previewed for you. Check the box next to each of the items you would like to create or update. Click Next to continue with the import.