File Extension Library

.SDEF File Extension

  • Developer by: Apple
  • Category: Developer Files
  • Format: XML

What are .SDEF files and how to open them?

Can't open .SDEF file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .SDEF file.

What is a .SDEF file extension?

.SDEF file extension is created by Apple. .SDEF has been classified as Developer Files. The format of .SDEF file is XML.

.SDEF is AppleScript Dictionary Document

XML dictionary file created for scripts written in the AppleScript language; contains a dictionary of terms, which includes classes (nouns), properties (adjectives), commands (verbs), and parameters (adverbs); stores the terminology used to communicate with the underlying program being controlled by the script.

AppleScript dictionaries store terminology in a format similar to human language. Because of this, script authors can write scripts using developer-defined terms that are easy to understand. SDEF files can be created and edited using AppleScript Editor, which is included with Mac OS X.

AppleScript is a scripting language built into Mac OS X that is used to automate repetitive tasks, create shortcuts, and develop custom applications. SDEF files can be used for incorporating custom instructions into AppleScript.

NOTE: AppleScript Editor was previously called "Script Editor" in Mac OS X 10.5 (Leopard) and earlier. The program was renamed to "AppleScript Editor" when Mac OS X 10.6 (Snow Leopard) released.

List of all softwares that can open the AppleScript Dictionary Document
Apple AppleScript Editor
Apple Xcode

How to fix problems with .SDEF files

  1. You need to update the application that you normally use to open .SDEF files. Only the latest version of the software supports the current .SDEF file format
  2. You need to check the .SDEF file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)