.POTX

Introduction

A POTX file is a Microsoft PowerPoint template: a starting point for new presentations, with a theme, slide masters, layouts and sometimes example slides. Opening a template in PowerPoint creates a new, untitled presentation based on it rather than editing the template itself. Companies use templates to keep their presentations in a common style.

.potm is the same with macros, and the older binary equivalent is .pot, described with PPT.

Structure

A POTX file is laid out exactly like a PPTX package: a ZIP archive of XML parts holding the presentation, its slide masters in ppt/slideMasters/, the layouts in ppt/slideLayouts/ and the theme in ppt/theme/. The difference is the content type of the main part in [Content_Types].xml, which is application/vnd.openxmlformats-officedocument.presentationml.template.main+xml.

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