Is there a way to update the name of a delivered Report that comes from an Extensible Flexfield?

We created an Extensible Flexfield called "Benefits History" that comes in the dropdown list of "Additional Person Info" as part of the functionality, we are able to get a downloadable Excel report, we would like to know if there's a way to "update" the name of this Excel report or if in order to be able to update it, we will have to build the flexfield from scratch