Is there any way to know creator of the report in Reporting Manager

Summary:

Need to know if there is any way to find the name of the creator of the report?

Or any better way to remove reference of an attribute from the report?

Content (required):

We have quite a few summation attributes in CPQ site we are working on. As these are deprecated, we wanted to replace them with Currency type attributes. There are few reports using these attributes so in order to delete them, I need to remove its reference from the reports.

For not being owner of the report, I am unable to update the report to remove the references.