ICMA File Extension

ICMA file icon
InCopy Assignment Format
  • Developer
    Adobe Systems
  • Category
  • Popularity
    3.5 (2 votes)

What is ICMA file?

ICMA filename suffix is mostly used for InCopy Assignment Format files. InCopy Assignment Format format was developed by Adobe Systems. ICMA files are supported by software applications available for devices running Mac OS, Windows. ICMA file format, along with 4324 other file formats, belongs to the Misc Files category. Adobe InDesign supports ICMA files and is the most frequently used program to handle such files, yet 1 other tools may also be used. On the official website of Adobe Systems Incorporated developer not only will you find detailed information about theAdobe InDesign software, but also about ICMA and other supported file formats.

Programs which support ICMA file extension

The following list contains programs grouped by 2 operating systems that support ICMA files. Files with ICMA extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support ICMA file

How to open file with ICMA extension?

There can be multiple causes why you have problems with opening ICMA files on given system. On the bright side, the most encountered issues pertaining to InCopy Assignment Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the Adobe InDesign

The main and most frequent cause precluding users form opening ICMA files is that no program that can handle ICMA files is installed on user’s system. To address this issue, go to the Adobe InDesign developer website, download the tool, and install it. It is that easy On the top of the page a list that contains all programs grouped based on operating systems supported can be found. If you want to download Adobe InDesign installer in the most secured manner, we suggest you visit Adobe Systems Incorporated website and download from their official repositories.

Step 2. Verify the you have the latest version of Adobe InDesign

If the problems with opening ICMA files still occur even after installing Adobe InDesign, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Adobe InDesign is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why ICMA files are not compatible with Adobe InDesign. The most recent version of Adobe InDesign is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Assign Adobe InDesign to ICMA files

After installing Adobe InDesign (the most recent version) make sure that it is set as the default application to open ICMA files. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Change the default application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the ICMA file
  • Select Choose another app → More apps
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where Adobe InDesign is installed. Now all that is left is to confirm your choice by selecting Always use this app to open ICMA files and clicking OK.

Change the default application in Mac OS

  • Right-click the ICMA file and select Information
  • Open the Open with section by clicking its name
  • Select Adobe InDesign and click Change for all...
  • A message window should appear informing that This change will be applied to all files with ICMA extension. By clicking Continue you confirm your selection.

Step 4. Verify that the ICMA is not faulty

Should the problem still occur after following steps 1-3, check if the ICMA file is valid. Being unable to access the file can be related to various issues.

1. The ICMA may be infected with malware – make sure to scan it with an antivirus tool.

If the ICMA is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the ICMA file is indeed infected follow the instructions below.

2. Ensure the file with ICMA extension is complete and error-free

If you obtained the problematic ICMA file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with ICMA extension was interrupted and the file data is defective. Download the file again from the same source.

3. Check if the user that you are logged as has administrative privileges.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Adobe InDesign

If the systems has insufficient resources to open ICMA files, try closing all currently running applications and try again.

5. Ensure that you have the latest drivers and system updates and patches installed

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with InCopy Assignment Format file. It is possible that one of the available system or driver updates may solve the problems with ICMA files affecting older versions of given software.

Do you want to help?

If you have additional information about the ICMA file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on ICMA file.

Top File Extensions
Show more
File Extension of the day
hex icon


Hexadecimal Source Format

Files with the HEX extension are source files utilised to save various data stored in hexadecimal system . They may include settings, configuration...