---
title: ".pptx file — what it is and how to open it"
description: "A .pptx file is a PowerPoint Presentation (Open XML). The standard PowerPoint deck since 2007. How to open one on Windows, macOS and Linux, and what to convert it to."
url: https://atoneplace.net/file/pptx/
site: "At One Place"
---

# .pptx files

**.pptx file: PowerPoint Presentation (Open XML)**

The standard PowerPoint deck since 2007.

## What opens a .pptx file

- **Windows:** Microsoft PowerPoint, LibreOffice Impress, WPS Office
- **macOS:** Microsoft PowerPoint, Keynote (built in), LibreOffice Impress
- **Linux:** LibreOffice Impress, OnlyOffice
- **In a browser:** Google Slides, PowerPoint for the web

## What a .pptx file is

PPTX is the Office Open XML presentation format — a zip of XML with the media embedded, so a deck full of photos and video gets large quickly. PowerPoint, Google Slides, Keynote and LibreOffice Impress all open it; animations, transitions and custom fonts are the parts most likely to look wrong outside PowerPoint. Exporting to PDF is the reliable way to send a deck someone only needs to read.

## Converting it

A .pptx file is commonly converted to .pdf, .ppt, .odp, .key or .mp4. It is a binary format, so a text editor will show unreadable characters rather than its contents.

## Details

- **Extension:** .pptx
- **Full name:** PowerPoint Presentation (Open XML)
- **Category:** Documents
- **MIME type:** application/vnd.openxmlformats-officedocument.presentationml.presentation
- **Created by:** Microsoft
- **Format:** Binary

## Common questions

### How do I open a .pptx file?

On Windows use Microsoft PowerPoint; on macOS use Microsoft PowerPoint; on Linux use LibreOffice Impress. The standard PowerPoint deck since 2007.

### What is a .pptx file?

PowerPoint Presentation (Open XML). PPTX is the Office Open XML presentation format — a zip of XML with the media embedded, so a deck full of photos and video gets large quickly. PowerPoint, Google Slides, Keynote and LibreOffice Impress all open it; animations, transitions and custom fonts are the parts most likely to look wrong outside PowerPoint.

### Can I convert a .pptx file?

Yes. It is usually converted to .pdf, .ppt, .odp, .key or .mp4, either by exporting from one of the programs listed above or with a format converter.

## Related pages

- [.pdf — Portable Document Format](https://atoneplace.net/file/pdf/)
- [.docx — Word Document (Open XML)](https://atoneplace.net/file/docx/)
- [.xlsx — Excel Workbook (Open XML)](https://atoneplace.net/file/xlsx/)
- [.txt — Plain Text File](https://atoneplace.net/file/txt/)
- [.doc — Word Document (legacy binary)](https://atoneplace.net/file/doc/)
- [.xls — Excel Workbook (legacy binary)](https://atoneplace.net/file/xls/)
- [.ppt — PowerPoint Presentation (legacy binary)](https://atoneplace.net/file/ppt/)
- [.md — Markdown Document](https://atoneplace.net/file/md/)
- [.rtf — Rich Text Format](https://atoneplace.net/file/rtf/)
- [.pages — Apple Pages Document](https://atoneplace.net/file/pages/)
- [.odt — OpenDocument Text](https://atoneplace.net/file/odt/)
- [.eml — Email Message](https://atoneplace.net/file/eml/)

## Sources

- Media Types Registry — IANA (https://www.iana.org/assignments/media-types/)
- Official vendor product documentation — At One Place (/about/)