How to open a .pptx file
PowerPoint presentation · Presentation
A .pptx file is a PowerPoint presentation. LibreOffice Impress, ONLYOFFICE and Google Slides all open it free. Like .docx it is a ZIP inside, so a damaged one can often be salvaged.
What a .pptx file actually is
PPTX arrived with Office 2007, replacing the binary .ppt. It is an Office Open XML package: a ZIP holding one XML file per slide plus the images, fonts and media.
That structure is why you can recover the images from a presentation whose file will not open, simply by treating it as an archive.
Why it will not open
Usually no presentation software is installed. The other case is a file that opens with missing fonts or broken layout, because the fonts it used were never embedded and are not on your machine.
Renaming it to an extension you can open will not help: changing the extension does not convert the file, it only changes what Windows tries to open it with.
Step by step
Windows
- 01Install LibreOffice or ONLYOFFICE, both free, or upload to Google Slides and view it in a browser.
- 02Microsoft also offers PowerPoint for the web free with a Microsoft account, which is the most faithful free renderer of the format.
- 03To pull the images out of a presentation, rename a copy to .zip and extract ppt/media, where every embedded image sits as an ordinary file.
- 04If the layout looks wrong, it is almost always missing fonts. Ask the sender to re-save with fonts embedded, or to send a PDF.
macOS
- 01Keynote opens .pptx and can export back to it.
- 02LibreOffice Impress is the closest free match for Office formatting.
What usually goes wrong
Fonts do not travel unless embedded
A presentation that looked perfect on the sender's machine can reflow badly on yours if it used fonts you do not have. PowerPoint can embed fonts when saving, and it is off by default. For a deck that only needs to be viewed, PDF removes the problem entirely.
Programs that open .pptx
Our pick, in order. Every one links to the publisher's official download URL and the SHA-256 hash of the installer. Once you have downloaded it, you can check the file against our index before you run it.
If you end up downloading one of these from somewhere other than the publisher, what you can and cannot verify about that is worth two minutes.
- LibreOfficeLibreOffice is a free and powerful office suite, and a successor to OpenOffice.org (commonly known as OpenOffice). Its clean interface and feature-rich tools help you unleash your creativity and enhance your productivity.v26.2.5.2 · 3 hashed installers100
- ONLYOFFICE Desktop EditorsAll the tools you need to work with text documents, spreadsheets, presentations, and fillable forms on Windows, Linux, and macOS.v9.4.0 · 3 hashed installers95
Common questions
- How do I open a .pptx file without PowerPoint?
- LibreOffice Impress and ONLYOFFICE open PPTX free on any desktop. Google Slides and PowerPoint for the web both do it in a browser with nothing installed.
- How do I extract images from a PowerPoint file?
- Rename a copy of the .pptx to .zip, extract it, and look in the ppt/media folder. Every embedded image is there as an ordinary file at full resolution.