The documents are expected to include confidential communications between the former president and his advisers along with records related to Clinton's federal appointments.
It could also include communications involving former first lady Hillary Rodham Clinton, who is considering a 2016 presidential campaign.
A spokesman for the National Archives says an initial 4,000 to 5,000 pages of documents will be released on Friday. It's part of 25,000 pages of documents that have been cleared for release in the coming weeks.
The expected release of the documents was first reported by Politico.