AD file extension - AppleDouble encoded file
What is ad file? How to open ad files?
File type specification:
ad file icon:
The AD file extension is related to the AppleDouble and used for its encoded files.
AppleDouble leaves the data fork in its original format, allowing it to be edited by normal Unix utilities. The resource fork and Finder information, both propietary and lacking editors under Unix, were combined into a second file.
The AppleDouble format should be the primary format when sending a Macintosh document. It makes it possible for a user that can't decode the AppleDouble header to read and use the Data fork of the document. It also keep the Macintosh specific information in the AppleDouble header, so a user who can decode the AppleDouble header can get the extra information, such as customised icons, which is not essential to the document itself.
List of recommended software applications associated to the .ad file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux etc.) and possible program actions
that can be done with the file: like open ad file, edit ad file, convert ad file, view ad file, play ad file etc. (if exist software for corresponding action in File-Extensions.org's database).
- Others ad file
Unspecified and all other actions for computer programs working with ad file - AppleDouble encoded file
Click on the software link for more information about Mac OS X. Mac OS X uses ad file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).