How to convert PPT to PPTX
1. Upload PPT
Select or drag and drop your PPT file into the converter.
2. Choose PPTX
Select PPTX as your output format. You can process multiple files at once.
3. Download
Click convert and download your new PPTX file instantly.
Format Details
PPT
PPT is the legacy binary presentation format used by Microsoft PowerPoint from 1987 through the Office 2003 era. It stores slides, animations, transitions, speaker notes, embedded media, and formatting in Microsoft's proprietary binary format. PPT files remain fully compatible with modern PowerPoint, LibreOffice Impress, and Google Slides, though PPTX is preferred for new work due to better interoperability.
PPTX
PPTX is the default Microsoft PowerPoint presentation format since Office 2007, based on the Open XML standard and standardized by ISO/IEC. It stores slides, animations, transitions, speaker notes, embedded media, and themes in a compressed ZIP package of XML files. PPTX is the dominant presentation format in business and education worldwide, natively supported by Google Slides, LibreOffice Impress, Apple Keynote, and all modern presentation tools.
Frequently Asked Questions
How do I convert PPT to PPTX?
Upload your PPT file on Convertek, select PPTX as the output format, then click Convert. Your PPTX file will be ready to download instantly.
Is the PPT to PPTX converter free?
Yes. Converting PPT to PPTX on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between PPT and PPTX?
PPT and PPTX are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the PPTX format.