A3P file: How can I open a .A3P file?
The table below provides useful information about the .a3p file extension. It answers questions such as:
- What is the .a3p file?
- What program do I need to open a .a3p file?
- How can the .a3p file be opened, edited or printed?
- How can I convert .a3p files to another format?
We hope you find this page helpful and a valuable resource.
✅ Alice v3 Project

The A3P file is an Alice v3 Project. Alice is a 3D Interactive Graphics Programming Environment. It is an open-source object-oriented program written in Java, which allows users to create a virtual world in which they can drag and drop objects and tell stories, create computer animations, short films and video games.
⚠ Be careful with .a3p files.
It's important to know that the .a3p file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .a3p files. Be cautious when dealing with .a3p files from unknown sources.
🚫 The .a3p file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .a3p file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Select an app to open this .a3p file
It means that the operating system does not have a default app associated with the .a3p file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .a3p file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .a3p file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .a3p file extension, write to us.