File Extension DOCM

  • Full name
    Microsoft Word 2007/2010 Open XML Macro-enabled Document Format
  • Developer
  • Popularity
Have you encountered a problem with a DOCM file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a DOCM file here. In the further part of this page we have added a list of programs that should open your DOCM file. It is enough you choose a proper application for your operating system, download and install it.


Files with the extension DOCM are document files of Microsoft Word as of version 2007. They correspond to the files with the extension docx, but can also contain macros or VBA scripts. This means they do not have to contain macros, unlike docx files.

The extension DOCM means Word Open XML Macro-Enabled Document. Word Open XML stands for the general format of Microsoft Word 2007.

In addition to texts and formatting instructions, a DOCM file also contains images, graphics and macros. The included macros or scripts may contain malicious code, so you should do a virus check before running it and always install the latest security updates for Microsoft Office.

Docm is an XML based file format (Office Open XML), which is not directly readable with older Word versions. For the 2000, 2003, and XP Office versions, however, this functionality can be pared using the Microsoft Office Compatibility Pack, with the result of reading a DOCM file not always 100% the same as the original.

A DOCM file consists of several XML files, which are automatically combined with the ZIP algorithm as an archive when they are saved. This saves space compared to the old doc format. Other benefits include better data integrity and easier data recovery in case of data loss.

The file extension can be easily changed in case of problems in docx, but a correct execution of the scripts and macros can be subject to restrictions.

Programs which can open a DOCM file

How to open a DOCM file? Advice and guidance

Absolutely most often appearing reason that prevents you from opening the DOCM file is the lack of a proper application to support it in your operating system. It is notably the first thing you need to address. When one of the programs to support a DOCM file from the list is already installed, you can try to rerun the file. The system should display a message asking you to choose a primary application to support DOCM files. At this point we are looking for disk space where the application was installed in and we can link it with a DOCM file. Since then, our operating system will use the selected program to support all DOCM files.

Other issues

Despite the described problem with DOCM there may be many more problems. If the existing operations were not effective, get involved with the following matters:

- verify that the DOCM file is not damaged and that it has been downloaded or copied in whole
- verify that the file has a file extension that has not been intentionally changed (for example, if it do not contain other information than its extension suggests)
- make sure again whether the DOCM file type is linked in the operating system with a proper program
- make sure that the file is not infected with a virus and you have up to date software and drivers.

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