PPTX Converter

Convert files to and from PPTX online

Drop files here. 100 MB maximum file size


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

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Supported Conversions