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Convert PPT PowerPoint presentations to and from common formats in your browser. All processing stays on your device.

What a PPT file holds

PPT is the presentation format of the older, binary Microsoft PowerPoint from the 97 to 2003 era, the predecessor of the modern PPTX. It stores a slide deck, the slides, text, images, layouts, transitions, and speaker notes, in PowerPoint's legacy binary structure.

Unlike the XML-based PPTX that replaced it, a PPT uses a compound binary format, a single container packing the presentation's parts. It was the standard way presentations were saved and shared for many years and remains widely recognised across presentation software.

Strengths and limits

PPT is recognised almost universally after decades of use, so it opens in nearly any presentation program, which makes it a safe choice for compatibility with older systems.

As a legacy binary format it is less efficient and transparent than PPTX, harder for other tools to parse reliably, and it can carry macros without a distinguishing extension. Microsoft encourages the newer PPTX instead.

PPT Development History

PPT was introduced by Microsoft in 1987 as part of Microsoft Office. It was designed to address the need for a digital presentation tool that could replace overhead projectors and paper slides. The format quickly gained popularity in business and education due to its user-friendly interface and integration with other Office applications.

Over the years, PPT evolved through various updates, leading to enhancements in design capabilities and multimedia support. The introduction of PPTX in 2007 marked a shift to an XML-based format, improving interoperability. Despite this, PPT remains in use for legacy support, particularly in environments where older software is prevalent.

Using PPT Effectively

Choose PPT when compatibility with older versions of PowerPoint is essential. It is useful in environments where legacy systems are still in operation. PPT files are also smaller in size compared to PPTX, making them easier to share in bandwidth-limited scenarios. However, be aware that some advanced features in newer software may not be supported.

When converting to or from PPT, ensure that all media and animations are compatible with the target format. Use tools like Microsoft PowerPoint for conversion to minimize data loss. Be cautious of potential formatting issues, especially with fonts and layout, as these may differ between versions or when opened in non-Microsoft applications.

Working with PPT files

You will meet PPT files in older presentation archives and decks made before PowerPoint moved to the XML-based format.

To modernise, open the PPT and save it as PPTX. For a fixed, universally-viewable version, convert to PDF, which anyone can open but cannot edit as slides.