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Details of the .3ac file extension

The table below provides useful information about the .3ac file extension. It answers questions such as:

  • What is the .3ac file?
  • What program do I need to open a .3ac file?
  • How can the .3ac file be opened, edited or printed?
  • Where can I find the specifications for .3ac?
  • Which MIME-type is associated with the .3ac extension?
  • How can I convert .3ac files to another format?
  • What are other, similar filename extensions to .3ac?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.3ac file extension details

ASTree Compiled Program

ASTree Compiled Program .3ac file icon
3AC file is an ASTree Compiled Program. An abstract syntax tree (AST) is a tree representation of the abstract syntactic structure of source code written in a programming language.
Category: Other files
Application: ASTree
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
3AC aliases:
3AC related links:
3AC related extensions:
ASTree Program

Other types of files may also use the .3ac file extension.

.3ac file extension error

The .3ac file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

eac, ac, a3c, wac, rac

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

EmEditor Auto Complete File
GNU Autoconf Input File
CaseWare Working Papers Client File
Alice v3 Class
Alan v3 Adventure Code
WinAMP Component Plugin
Venue Race Application Race Data
UltraEdit Autorecovery Data
Racter Conversation Data
open .3ac file

Can't open a .3ac 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:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .3ac file association, check the FAQ.

.3ac file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .3ac file extension, write to us!

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