PPTX Converter

Convert files to and from PPTX online

Drop files here. 100 MB maximum file size

PPTX

Microsoft PowerPoint Open XML File Format

PPTX is the file extension representing PowerPoint files based on the Office Open XML file format. Introduced in Microsoft Office 2007, PPTX replaced the older PPT format as the default PowerPoint file type. Compared to PPT, PPTX uses improved compression techniques, XML and ZIP packaging, and standardized structures across Office documents. PPTX files contain slide text, formatting, animations, media like images and video, slide transitions, and other presentation elements. The .pptx filename extension indicates a PowerPoint Open XML presentation. PPTX is compatible across Microsoft platforms and can be exported to PDF, video, and other formats while retaining fidelity. It brings the ubiquitous PowerPoint presentation into the open XML age with an efficient packaging mechanism.

Convert Between All Major Video Formats

Our video converter supports conversion between MP4, AVI, MKV, FLV, MOV, WMVs, and hundreds more video formats.

Fast Video Conversion Speeds

Thanks to our multi-threading encoding, our video converter can convert even large videos in just minutes.

Cloud-Based for Access Anywhere

Since it runs in the cloud, our video converter can be accessed on any device with an internet browser.

Customize Your Video Settings

Tweak video resolution, bitrate, frame rate, codecs, and other settings to customize the output quality and size.

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Compatible with All Your Devices

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Supported Conversions