A daily updated filename extension database!

ACA file extension

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

  • What is the .aca file?
  • What program do I need to open a .aca file?
  • How can the .aca file be opened, edited or printed?
  • How can I convert .aca files to another format?

Table of Contents

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

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

✅ Microsoft Agent Character Animation

Microsoft Agent Character Animation .aca file icon
ACA file is a Microsoft Agent Character. Microsoft Agent is a software technology that enables an enriched form of user interaction that can make using and learning to use a computer, easier and more natural.
ACA format description not yet available
Category: Data files
Application: MS Agent
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
ACA aliases:
ACA related links:
ACA related extensions:
Microsoft Agent Character Data

Microsoft Agent Character

Microsoft Agent Character Preview

Microsoft Agent AAF Data

Other types of files may also use the .aca file extension.

🚫 The .aca file extension is often given incorrectly!

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

aa, aac, ac, acq, acw, acx, acz, ada, afa, asa, ava, axa, ca, caa, qca

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

WebFOCUS Data Description
DATAIR FlexPlus Data
CaseWare Working Papers Client File
BrainVoyager QX ANCOVA Analysis Data
Audible Audiobook
ASP Global Script
Core Animation Markup Language Data
IBM Rational XDE ACX Data
CLAN Conversation Analysis Data
AcqKnowledge Data

🔴 Can't open a .aca 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 .aca file association, check the FAQ.

🔴 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 .aca file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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