How to open AS3PROJ files
Did your computer fail to open an AS3PROJ file? We explain what AS3PROJ files are and recommend software that we know can open or convert your files.
What is an AS3PROJ file?
AS3PROJ files are FlashDevelop ActionScript 3 Project files, which you can read more about below.
The AS3PROJ file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So an AS3PROJ opener may not be able to open all kinds of AS3PROJ files. In this case, though, we only know of one specific use.
FlashDevelop ActionScript 3 Project
Through our analysis of AS3PROJ files, we know that one use of the format is FlashDevelop ActionScript 3 Project. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.
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AS3PROJ file openers, viewers, etc.
These apps are known to open certain types of AS3PROJ files. Remember, different programs may use AS3PROJ files for different purposes, so you may need to try out a few of them to be able to open your specific file.
 | FlashDevelop RTM for Microsoft.NET | User submitted |
 | FlashDevelop for .NET | User submitted |
 | FlashDevelop RTM for Microsoft.NET Runtime | User submitted |
 | FlashDevelop RC1 for Microsoft.NET | User submitted |
 | FlashDevelop | User submitted |
 | FlashDevelop RC2 for Microsoft.NET | User submitted |
| FlashDevelop RC3 for Microsoft.NET | User submitted |