Opening an ADMX File

The ADMX file type is primarily associated with Group Policy Editor.

ADMX	File extension: ADMX
	File type:	XML file

What is an ADMX file?

ADMX files mostly belong to Group Policy Editor. ADMX files are XML-based templates used by the Group Policy Editor in Windows to define and control system and user settings.
These files contain the definitions for policy settings and are stored in a plain text format, often using UTF-16 (LE) encoding. They serve as a template that tells Windows which policies are available and how they should be presented in the Group Policy interface.
Key details provided by FilExt.com include:

Format: Written in XML (some files use UTF-16 encoding).

Function: They act as a settings template to help configure administrative policies.

Usage: Primarily handled by the Windows Group Policy Editor for centralized policy management.

Location: Typically found in the PolicyDefinitions folder of a Windows system.

For more specifics, refer to the documentation available at Microsoft Learn.
FilExt.com note: These files can be opened with any text or XML editor for review or troubleshooting.

How can I open an ADMX file?

You need a suitable software like Group Policy Editor to open an ADMX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your ADMX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ADMX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ADMX Text Viewer

Choose your .admx file to view

or drag and drop it here

Online File Viewer

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How to extract texts from ADMX files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

If you want to extract texts from ADMX file or capture a screenshot, you can use our free Online ADMX File Viewer:

Just click the "Choose your .admx file to view" button on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert ADMX files:

Group Policy Editor
See the previous paragraphs to learn more about the main application. ADMX files are often referred to as Group Policy Editor settings because this type of file is primarily created or used by this software.
Windows/Office (Group Policy Settings) by Microsoft Corporation
Microsoft Windows Vista and Windows Server 2008 introduce a new format for displaying registry-based policy settings. Registry-based policy settings (located under the Administrative Templates category in the Group Policy Object Editor) are defined using a standards-based, XML file format known as ADMX files. These new files replace ADM files, which used their own markup language. ADML files are XML-based ADM files that contain language-specific settings. Related links: ADM, ADMX, ADML Office Customization Tool Updates

ADMX file format:

To view or edit ADMX files you need to know the file format, because it determines how the data in this file is stored. The initial characters of a file are called signature, sometimes also referred to as "magic bytes". The signature can be used to infer the file format. File extension, signature and file format must match; otherwise errors will occur when the file is opened. Knowledge is power - this also applies when dealing with unknown or faulty files. In the following you will find our evaluation of the ADMX files:

ADMX is rarely used as a file extension and is mainly used by one program with a specific format. However, the following two file formats are common:

95% of all ADMX files are Group Policy Administrative Template files, which are based on the XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files are text files and can therefore be read using a text editor. A typical file size is 13 KB. The file type was developed 10 years ago and is still in use today. The following keywords are characteristic: <?xml version="1.0" encoding="utf-8"?>, <policyDefinitions xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instan and . A common filename is receiver.admx. These files can be linked to windows, meetings and zoom.

All other ADMX files (5%) have no consistent format. If you want to find out which format your ADMX file belongs to, just click on the button "Choose your .admx file to view".

Technical Data for ADMX File Extension

File classification:

Settings

Related files:

adml, adm, gpo, reg, pol, inf, cpl, amdx, adsx, dll, dict, zip, exe, mdi, lxa, xml

Mime type:

text/xml

an admx XML file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ADMX files

Associate the ADMX file extension with the correct application.
Update your software that should actually open xml files. Because only the current version supports the latest ADMX file format. Search, therefore, e.g. on the manufacturer website after an available Group Policy Editor update.
To make sure that your ADMX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ADMX file online - secure, fast, and no downloads needed.