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Details of the .actm file extension

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

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

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

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

.actm file extension details

Autodesk AutoCAD Action Macro

Autodesk AutoCAD Action Macro .actm file icon
ACTM file is an Autodesk AutoCAD Action Macro. Autodesk AutoCAD is a CAD software application for 2D and 3D design and drafting.
Category: Data files
Application: Autodesk AutoCAD
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
ACTM aliases:
ACTM related links:
ACTM related extensions:
Autodesk AutoCAD Drawing

Autodesk AutoCAD Slide Library

Autodesk AutoCAD Slide Library

Autodesk AutoCAD Template

Compiled Fast-Load AutoLISP

Autodesk AutoCAD Fields Description

AutoCAD Publish To Web Template

Autodesk AutoCAD Status Log

Autodesk AutoCAD Batch Plot File

Autodesk AutoCAD Plot Configuration

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

.actm file extension error

The .actm file extension is often given incorrectly!

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

acfm, act, atm, ctm, astm, acm

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Adobe Composite Font Metrics
Microsoft Office Assistant Actor
OptionVue Portfolio Manager Account Data
Adobe Photoshop Color Table
Alphacam Lathe Param Macro
RFM Atmospheric Profile Data
Optitex 3D Suite ASTM Grading File
WhereIsIt Template File
Microsoft Audio Compression Manager Codec
Adobe Photoshop Command Button
open .actm file

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

.actm 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 .actm file extension, write to us!

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