File extension Details of AD, AVL, AIM, AFPLOC, ACS, AIF, ATZ, KTH, ALT

Name:	AD
File Type:	After Dark Screensaver
Popularity:	2
Category:	misc
File Description:	Screensaver run by the After Dark program; stores animations that are displayed on the screen when the system is inactive for a certain amount of time; popular After Dark screensavers include Flying Toasters and Bad Dog.
Open Programs:	Mac OS Berkeley Systems After Dark X (ADX) Windows Berkeley Systems After Dark

Name:	AVL
File Type:	ArcView Legend File
Popularity:	3
Category:	misc
File Description:	Contains a legend or key for a map created with ESRI ArcView GIS (Graphic Information System) mapping software; includes symbology information used in the corresponding map file; saved in a standard text format and may be referenced by a ArcView project (.APR) file. ArcView is part of ESRI's ArcGIS Desktop product family.
Open Programs:	Windows ESRI ArcView

Name:	AIM
File Type:	AOL Instant Messenger Launch File   (Most common)
Popularity:	3
Category:	misc
File Description:	File used to open America Online's instant messaging program; "AIM" may also refer to the AOL Instant Messenger program itself; the Windows executable is named "aim.exe."
Open Programs:	Mac OS AOL Instant Messenger Windows AOL Instant Messenger

Name:	AFPLOC
File Type:	Apple Filing Protocol Location
Popularity:	3
Category:	misc
File Description:	Contains the location of a system that can be accessed via an Apple Filing Protocol (AFP) connection; stores the location, such as an IP address, in an XML format; provides one-click access to a server or other machine on a network.
Open Programs:	Mac OS Apple Finder (part of the operating system)

Name:	ACS
File Type:	Agent Character File
Popularity:	3
Category:	misc
File Description:	Animated character created with Microsoft Agent; can interact with the user using text-to-speech and speech recognition technologies; may be implemented in both applications and Web pages.
Open Programs:	Windows Microsoft Agent Character Editor

Name:	AIF
File Type:	Symbian Application Information File
Popularity:	3
Category:	misc
File Description:	Information file that specifies the icon and caption for a Symbian application (.APP) file; typically created with Symbian's AIF Builder and saved along with the corresponding application file. Application information files are referenced by the Symbian OS and do not need to be manually opened by the user.
Open Programs:	Windows Symbian AIF Builder

Name:	ATZ
File Type:	Atomic Time Zone File   (Most common)
Popularity:	3
Category:	misc
File Description:	Contains a list of active Atomic Time Zone servers from around the world; keeps track of the current time by checking with several "atomic clocks" via the Internet
Open Programs:	Windows Atomic Time Zone

Name:	KTH
File Type:	Keynote Theme
Popularity:	3
Category:	misc
File Description:	Theme file in XML format; used for presentation templates in Apple Keynote presentation program
Open Programs:	Mac OS Apple Keynote

Name:	ALT
File Type:	Dynamics AX Temporary File
Popularity:	3
Category:	misc
File Description:	Application label temporary file generated by Microsoft Dynamics AX; contains new labels created within program; saved as a standard label data (.ALD) file once the Dynamics AX Application Object Server has shut down.
Open Programs:	Windows Microsoft Dynamics AX

Name:	AAWDEF
File Type:	Ad-Aware Definitions File
Popularity:	3
Category:	misc
File Description:	Contains definitions of adware, spyware, and viruses for Ad-Aware, an anti-spyware program; used for locating and removing malware from a system; should be updated regularly to protect against new types of system attacks. The main definitions file is named "core.aawdef" and is located in the "C:\Documents and Settings\All Users\Application Data\Lavasoft\Ad-Aware 2007\" directory.
Open Programs:	Windows Lavasoft Ad-Aware