pptm

PPTM is the PowerPoint Macro-Enabled Presentation file format used by Microsoft PowerPoint. It stores slides, layouts, media, and Visual Basic for Applications (VBA) macros in a single Open XML package. The standard macro-enabled presentation uses the .pptm extension. Compared with the macro-free .pptx format, a PPTM file can contain VBA code that automates tasks or adds custom functionality to a presentation.

Like other Open XML formats, a PPTM file is a zipped collection of XML files and media; the VBA project data is typically stored in a vbaProject.bin file within the ppt directory of the package. The macro code can be edited with the Visual Basic Editor within PowerPoint.

PPTM files are supported by PowerPoint 2007 and later. They can be created by saving a presentation with macros as PPTM. Some third-party applications can open them, but macro execution is not guaranteed outside of PowerPoint. Security considerations: macros can execute arbitrary code, so PPTM files may be blocked or warned by default; macros should be enabled only from trusted sources and may be digitally signed.

In usage, PPTM is common when a presentation requires automation, such as generating slides or controlling media via VBA, or when distributing templates that include macro functionality. Related formats include PPT (legacy binary with macros), PPTX (macro-free), and PPSM/PPSX (show macro-enabled variants).