| A | B |
| .au | .au is the most common sound format found on the web. Binary |
| .aiff | .aiff is also a semi-common sound format. Binary |
| .bin | Macbinary II Encoded File. Make sure to download as MacBinary or Binary. |
| .doc | May be a DOS/Windows program or a DOS/Windows Self Extracting Archive Binary |
| .exe | May be a DOS/Windows program or a DOS/Windows Self Extracting Archive.Binary |
| .gif | GIF (Graphical Interchange Format), though not the most economical, is the most common graphics format found on the Internet. |
| .gz | .gz is the Gnu version of zip. It is a compression method developed for use on UNIX systems. Binary |
| .html or .htm | HTML (Hypertext Markup Language), the code the web is written in. Plain text file. |
| .hqx | BinHex 4.0 - Encodes a Macintosh file into 7-bit text so it can be safely transfered. Most Mac files appear in .hqx |
| .image | Macintosh Disk Image, most commonly found on Apple's FTP sites. Binary |
| .jpg .jpeg or.jfif | JPEG/JFIF, a 24 bit graphic format. Binary |
| .mpg or .mpeg | MPEG, the standard movie platform for the 'net. Binary |
| .mov .qt .movie or .moov | QuickTime Movie, Apple Macintosh native movie platform |
| .pdf | Adobe Acrobat Portable Document Format, download as Binary |
| .ps | Postscript file. Plain text file, but not really human-readable. |
| .sit | Stuffit Archive - Binary |
| .sea | Macintosh Self Extracting Archive |
| .tar | UNIX tar program takes seperate files and turns them into one file. Often also compressed. Extensions such .tar.Z, .tar.gz and .tgz (latter two are equivalent) requires decompression first, then un-tar. Some UNIX ftp servers will un-tar a file if you request it without the ".tar" extention. Binary |
| .tiff or .tif | TIFF is a very large high quality image format. Binary |
| .txt | A plain boring old Text File |
| .uue or .uu | A uuencoded file. Typically this is done on a UNIX command line:uuencode OriginalFileName SecondFilename > EncodedFile.uu Then, after running: uudecode EncodedFile.uu One gets a file generated named: SecondFileName Using .uu as the extension is not required but is considered politely explanatory for what type of file it is. Increasing numbers of desktop mail and newsreading programs will handle this type of encoding on the fly. |
| .wav | Windows Wave format sound file. Binary |
| .Z | Unix Compressed File. Binary |
| .zip | pkzip, a common DOS/Windows compression format. Binary |