Uniform Type Identifier
From Just Solve the File Format Problem
Uniform Type Identifier (UTI) is an identification system associated with Apple computers, or an identifier from that system. It's used for file types, and similar things.
A UTI is a string that looks like a reversed domain name. For example, the UTI for GIF is com.compuserve.gif.
See also
- Macintosh type/creator code - Another type identification system from Apple
