ADM File - opening and understanding

Did your computer fail to open an ADM file? We explain what they are used for and recommend software that we know can open or otherwise handle your .ADM files.

What is an ADM file?

Files that contain the .adm file extension are most commonly associated with Microsoft Group Policies. The ADM files are template files that describe where the registry policy settings should be placed in a user's Windows registry and what the interface will look like when an admin uses the Group Policy Object Editor.

The .adm file extension is also used by the Portfolio Admin-Level Access utility. These ADM files contain flag files that are used by system admins. These files are created when an Extensis Portfolio Catalog or .FBD file is opened in admin mode on a user's computer. These files are normally deleted automatically when the catalog is no longer in use.

How to open ADM files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension ADM for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 8 different ADM openers which you will find listed below.

Suggest another file format using extension ADM

While we know of one file format using the .ADM file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .ADM file.

Various viewers for this file format

These apps are known to open certain types of ADM files. Remember, different programs may use ADM files for different purposes, so you may need to try out a few of them to be able to open your specific file.

PowerDesignerPowerDesignerUser submitted
ARCDRAWARCDRAWUser submitted
MercatorMercatorUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
PTOLEMYPTOLEMYUser submitted
Any Video Converter FreeAny Video Converter FreeUser submitted
HunKalkHunKalkUser submitted
DiscMenuDiscMenuUser submitted
We have not verified any software that we know for certain will work with ADM-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with ADM-files. If you know one, please use the 'Suggest a program' link below and tell us about it!