.POTM File Extension
Microsoft PowerPoint Macro-Enabled Presentation Template
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What is a POTM file?
A POTM file is a macro-enabled presentation template created by Microsoft PowerPoint, a program used for creating slide show presentations. It contains default images, slide templates, macros, and formatting. POTM files are used to create multiple .PPTM files with the same formatting and macro settings.
The average PowerPoint user will most likely never come across a POTM file because it is used to save templates with more functionality than a typical user needs. It supports the use of macros, which are script-like functions used to automate repetitive tasks.
You can record macros in PowerPoint that can be replayed to complete a task and assign them to a button in PowerPoint or keystroke, which allows you to conveniently run the series of steps. To record a macro, select View → Macros.
If you are simply looking to create basic presentations you can save them as .PPTX files. However, if you are looking to create a template that supports macros, you can save your presentation as a POTM file.
NOTE: POTM files were introduced with the release of Microsoft Office 2007.
How do I open a POTM file?
You can open POTM files with Microsoft PowerPoint (2007 or later) in Windows and macOS. PowerPoint is the best option for opening POTM files because it fully supports the formatting of the presentations and the macros embedded in them.
You can also open POTM files with other applications but some of the formatting of the original presentations and macros may be lost. Other programs you can use to open POTM files include Apache OpenOffice Impress (multiplatform), Kingsoft Presentation (multiplatform), and Apple Keynote (Mac). If you are a Mac user simply looking to view a POTM file, you can use Apple Preview, which comes bundled with macOS or upload it to Google Drive, which is a free cloud storage service.
You can also upload POTM files to Google Slides online to open, edit, and convert the templates. Keep in mind that Slides does not support macros.
While POTM files are typically legitimate Microsoft PowerPoint presentation templates, they may also be used to distribute and execute malware attacks on victims' computers. To protect against malicious POTM attacks, never open a POTM file with PowerPoint unless you can verify its legitimacy and source.