PPT to PPTX Converter
Upgrade your old PowerPoint presentations. Convert .ppt to the newer .pptx format for better security and features.
Why Convert PPT to PPTX?
The .ppt format was the standard until 2007, but today's .pptx format offers significant advantages. It uses XML for smaller file sizes, better data recovery, and improved security. Converting your old files ensures they remain accessible and editable in modern versions of PowerPoint, Google Slides, and Keynote.
Moving to the modern PPTX format also enables full support for newer chart types, better smart graphics, improved animation effects, enhanced multimedia embedding, and significantly wider compatibility with mobile office apps like PowerPoint Mobile, Google Slides, and Apple Keynote on iOS and Mac devices.
How to Convert PPT to PPTX
- Upload your legacy .ppt file.
- The tool converts the internal structure to XML-based .pptx.
- Click 'Convert' to finish.
- Download your upgraded PowerPoint file.
Key Features of MiConvert PPT to PPTX
- Upgrade legacy PPT files
- Uses modern XML format
- Smaller file sizes
- Fully editable output
- Batch processing supported
- Secure conversion
Video Tutorial
Watch this step-by-step tutorial to learn how to convert PPT files to PPTX format online for free using MiConvert.com. No software installation required.
Frequently Asked Questions
Will my layout change?
In most cases, the layout is preserved perfectly during conversion. Text, images, shapes, and standard slide transitions carry over seamlessly to the new PPTX format.
Can I edit the new file?
Yes, the resulting PPTX file is fully editable in all modern presentation software, including Microsoft PowerPoint, Google Slides, and Apple Keynote.
Are macros preserved?
This converter focuses on the presentation content (slides). Macros (VBA) from .ppt files are typically stripped for security reasons during conversion to standard .pptx.
Does it reduce file size?
Yes, .pptx files are compressed archives, so your new file will often be significantly smaller than the old .ppt version.