Scam Advisory: We’ve been notified of individuals posing as The Source producers and requesting payment for booking. TPR never charges for interviews or appearances. Booking requests can be verified at thesource@tpr.org. Report incidents to reportfraud.ftc.gov.
The reason: It's probably not legit. A vast phishing scam has been emailing malicious files masquerading as Google Docs. Does a recent edit invitation smell fishy to you? Just delete it.