AS file format is used by ActionScript software application. This application is used for programming purposes.

The programming language used in this process is ActionScript which is an object oriented programming language. The working of this language is similar to JavaScript and is mostly used for designing of the webpages or software application which are bASed on Adobe FlASh Player. All the source code which is written using this programming software is stored with the file format of AS. This file is used to keep the syntax of the source code intact and therefore is used to build the final file.