When using Blackboard, you can also upload grades to your online gradebook.
Step 1: Login to your course, click on the Control Panel link and select Gradebook.
Step 2: Scroll over the Manage Tab and click on the Upload link.

Step 3: Click on the Browse button to search for your spreadsheet to upload into Blackboard. Find the file on your computer and hit Open. Select how you wish the file to be delimited, with fields either separated by commas, by tabs, or automatic.

Step 4: Click on the Submit button.
Step 5: This will bring you to the Choose Column to Upload page. First, choose the column from your personal spreadsheet that you would like to upload; then choose which column in the gradebook the uploaded column will appear in. If you would like to create a new column, you would click on Create New Gradebook Item.

Step 7: Click on the Submit button to submit your imported column.
Step 8: Select the students whose grade you want to upload and click on the Submit button to close the Choose Rows to Upload page.
Step 9: Click on the
button to close the successfully updated page.
Step 10: Click on the
button to close the successfully updated page.