The following are the top plug-ins and helper applications currently available for Macintosh computers. Most basic players are free, but some require a small fee to add additional features. Since smaller files copy faster, most downloadable files are compressed. After downloading a compressed file, you must use a decompression program to decipher the archive and recreate the original file. The dominant Macintosh decompression program is StuffIt.
Stuffit files end with the extension .sit.
When confronted with a file ending with this extension, Stuffit must first be used to bring the file back to its original condition. Look for it in folder with the browser. Generally zip files are not applicable to the Mac. Unlike traditional paper pages, the appearance of Web pages can vary depending upon your computer, browser, and installed fonts. This makes it easier for people with different computers to access the Web, but interferes with instruction manuals, legal forms, and other documents requiring precise placement of items.