.POTM File Extension

Macro-enabled presentation template created by Microsoft PowerPoint, a program used for creating slide show presentations; contains default images, slide templates, macros, and formatting; used to create multiple .PPTM files with the same formatting and macro settings.

POTM files may be opened by PowerPoint 2008 for Mac or PowerPoint 2007 for Windows, or by a previous version of PowerPoint with Open XML document support installed.