Compressed and/or archived files are often found in the archives of an anonymous ftp site.

The following is a set of links that explain many different compression types, how the files are named by suffix and how to get software that implements the compression schemes likely to be floating arounf the Internet.

1. Intro to anonymous FTP
2. gzip, gunzip, zcat - compress or expand files
3. File Suffixes and Compression Schemes
4. Procedure FTP
5. File Types
6. Common Internet File formats