What is a DOTM file?
A file with DOTM extension represents template file created with Microsoft Word 2007 or higher. It is similar to the popular DOCX file format other than it retains the user defined settings for reuse in case of creating new documents. Such documents are more often used in offices where a standard template file is generated with settings like page information, margins, default layout and macros, and is used to create new documents from it when required. DOTM files, however, save macros, that are a series of commands in the form of recorded actions for automatic completion of a task. This helps save time in carrying out actions that are repeated in completion of a task.
Brief History
DOTM file format is based on the Office OpenXML standard. It was in the early 2000 when Microsoft decided to go for the change to accommodate the standard for Office Open XML. Documents, of different types, under this new Standard were identified by appending “X” in their extensions, where “X” being for XML. By 2007, this new file format became part of Office 2007 and is carried on in the new versions of Microsoft Office as well. The new file type has added advantages of small file sizes, less changes of corruption and well formatted images representation.
Key Characteristics of DOT Files
| Characteristic | Description |
|---|---|
| File Extension | .dotm |
| Full Name | Microsoft Word Macro-Enabled Template |
| Format Type | Compressed Archive (ZIP) containing XML and a binary VBA project |
| Primary Use | Creating document templates that include automated processes via VBA macros. |
| Creates New Documents As | DOCM (Macro-Enabled Document) files. |
| Security Profile | High-risk; requires users to “Enable Content” to run embedded macros. |
| Replaced | The legacy, binary DOT format for templates requiring macros. |
| Open Standard | Yes (ECMA-376, ISO/IEC 29500). |
DOTM File Format Specifications - More Information
The DOTM file format follows the same DOCX structure based on Office OpenXML file format. Contents of a DOTM file format can be viewed by renaming it to ZIP and opening the archive using any supporting utility. The MS-DOCX specifications define the Office OpenXML file format details for DOCX file format for developers’ reference and are applicable to DOTM as well.
FAQ
Q1: What is the difference between DOTX and DOTM files?
A: DOTX files are standard, macro-free templates, while DOTM files are macro-enabled templates that can run VBA code to automate tasks.
Q2: How do I create a DOTM file?
A: In Microsoft Word, design your template and then use “Save As” > “Word Macro-Enabled Template (*.dotm)”
Q3: Can I convert a DOTM file to a DOTX file?
A: Yes, by saving it as a DOTX file, but this action will remove all VBA macros, stripping the template of its automation capabilities.
Q4: Why would my business need a DOTM template?
A: Your business would use a DOTM template to automate complex document generation, such as creating dynamic contracts, populating reports with live data, or building interactive forms, saving significant time and reducing errors.
Q5: What should I do if I receive a suspicious DOTM file via email?
A: Do not enable macros. Verify the sender’s identity through a different communication channel (like a phone call) before proceeding, or simply delete the file if it’s unexpected.
