Mass upload 'Completed' status for employees

Summary

Loader template for mass uploading offering completed for a number of employees on a given date

Content

Dear Experts,

I have over a 100 employees who have completed a given offering but this is not reflected on the system. I would be grateful If someone could please share a template that I could use to update the status to 'Completed' for all these employees along with the date of completion.

Many thanks in advance!

R