.A3P File Extension

Alice 3 Project

Developer Carnegie Mellon University
3.0  |  6 Votes

What is an A3P file?

An A3P file is a 3D animation created using Alice 3, the third iteration of the Alice programming language and integrated development environment (IDE). It contains source code that defines the animation's environment, characters, objects, and movements. However, A3P files are binary files, so you cannot view the code they contain in a text or source code editor. To view the animation and code an A3P file contains, you must open it in Alice 3.

More Information

Screenshot of a .a3p file in Alice 3
A3P file open in Alice 3

Alice is an educational programming language and IDE that teachers use to teach programming concepts to middle-grade students. In Alice, students drag and drop characters, objects, and code snippets to produce 3D animations. A student can edit their animation in either Alice's Scene Editor, which allows the student to add and manipulate objects, or Code Editor, which allows the student to animate objects.

Alice 3 saves students' animation projects as A3P files. From within Alice 3, students can export the animation their A3P file contains as an .A3W file, which is a Zip archive that contains all the animation's assets. Students can use their A3W file to play their animation in the Alice Player, a standalone Alice animation player.

NOTE: A3P files are not compatible with previous versions of Alice, and animation projects created in previous versions of Alice are not compatible with Alice 3.

How to open an A3P file

You can open an A3P file in Alice (cross-platform). To do so, select File → Open... from the program's menu bar. Then, navigate to and open your A3P file.

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Programs that open A3P files


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