RelativityOne has made the frequently arduous task of redacting Excel spreadsheets easier. Redact XLS Navigator can be added to a workspace below the metadata field layout in the document viewer. On the lower right where the family documents are referenced. you'll find an option to pull up the navigator. It will allow you to select and delete comments, headers and footers, and other objects and comments, which Relativity lists and groups together.
Don't miss that there's also a button at the bottom of the screen which can be used to redact the name of a worksheet. Individual columns can also be redacted. If you are assigned to hunt through a spreadsheet for only a few rows which need to be retained, while the rest of data should be redacted, there is an inverse redaction option available.