The Corrupted Archive

A critical project archive at /home/challenger/project.tar.gz has been corrupted. The archive originally contained 5 important files (file1.txt through file5.txt). Due to the corruption, extracting the archive normally may fail or produce incomplete results. Your job is to recover as many files as possible into /home/challenger/recovered/ You need to recover at least 4 of the 5 original files with their correct content. The content of each file follows a predictable pattern -- check carefully.