Possibility of mass updating Start Dates on offer gird

Summary

Is it possible to do a mass update of start dates?

Content

Hello everyone,

My organization is currently processing a large group (1000+) of hires through Taleo that were all slated to start on the same date. Per a change in the requirements in this project, we now need to change the start date to an earlier date. Unfortunately all of the E-Offers have gone out and have been completed, and many have completed their onboarding process as well so they are coming through our integration to Fusion HCM with the incorrect start date. I was wondering if there is a way to update the start date on the offer grid for those associates