here is the vice article about this:
In anticipation of the government’s official UFO report coming in less than six months thanks to the COVID-19 omnibus bill, you can now download all of the publicly available CIA documentation on UFOs.
The Black Vault, a clearinghouse for declassified documents, has released a downloadable document archive filled with PDFs containing CIA files on Unidentified Aerial Phenomena (UAP), the government’s preferred term. . Some of the reports date all the way back to the 1980s, and according to the site’s founder, John Greenewald Jr., the spy agency claims this is all of its documents on UAPs.
According to Greenewald, around 10,000 Freedom Of Information Act (FOIA) reports were required to obtain the PDFs and the process was an excruciatingly long one. He scanned the documents by hand.
and at the link below, you can download the files