How to open a .PPTX file online
Three steps, a few seconds, no PowerPoint.
Choose your .PPTX file
Drag your .PPTX file onto the box above, or click Choose file.
Supported
Your .PPTX file is unpacked and every slide is redrawn from its text, shapes, pictures and tables.
Read or present
Click through thumbnails, read the speaker notes, or press Present for a fullscreen slideshow.
What is a .PPTX file?
Everything worth knowing about Microsoft PowerPoint Open XML Presentation files.
A PPTX file is a Microsoft PowerPoint presentation, the standard slide-deck format since PowerPoint 2007. You do not need Office to open one. LibreOffice Impress, Google Slides, and PowerPoint for the web are all free. To share a non-editable copy, export it as PDF.
Programs that open .PPTX files
| Full name | Microsoft PowerPoint Open XML Presentation |
|---|---|
| Developer | Microsoft |
| First released | 2007 (PowerPoint 2007 / Office Open XML); ISO/IEC 29500 in 2008 |
| Category | Documents |
| MIME type | application/vnd.openxmlformats-officedocument.presentationml.presentation |
| Signature | 50 4B 03 04 ("PK" - standard ZIP local file header) |
Related viewers
Other free viewers for related formats.
Is my .PPTX file uploaded anywhere?
No. Your .PPTX file is unpacked and drawn for you.
Will it look exactly like in PowerPoint?
Close, but not pixel-perfect. Text, shapes, pictures, tables, colours and the theme are redrawn from the file. Animations, transitions, charts, SmartArt and some special effects are simplified or skipped.
Can I see the speaker notes?
Yes. Notes appear under the current slide whenever the author added them, and they're counted in the info panel.
What about old .PPT files?
For PowerPoint 97-2003 files the viewer extracts the text of every slide, titles and bullets included, but doesn't draw the layout yet. Save the file as PPTX for a full preview.
And Apple Keynote?
Keynote files keep their slides in a proprietary format. If the file contains its built-in preview image we show it; otherwise export the deck from Keynote as PPTX or PDF.
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