TCR to PPSX Converter

Free TCR to PPSX slide show conversion online

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One-Click Presenting

Convert TCR text to PPSX — a slide show format that launches into full-screen presentation mode the moment you open it.

Works Everywhere

PPSX files are supported by PowerPoint, Google Slides, Keynote, and LibreOffice Impress — present from any device or operating system.

Rapid Processing

TCR files are lightweight compressed text. The conversion to PPSX wraps up in seconds on Convertio cloud servers.

How to convert TCR to PPSX

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose ppsx or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your ppsx file right afterwards

About formats

TCR (Text Compression for Reader) is a compressed plain-text ebook format developed by Barry Childress in the early 1990s for the Psion Series 3 family of palmtop computers. The format was created for Childress's Reader3 application, a text file viewer that needed to fit large books into the Psion's extremely limited storage — typically 128 KB to 2 MB of available memory. TCR uses a dictionary-based compression scheme derived from the earlier ZVR format by Ian Giddings, replacing repeated byte sequences with single-byte tokens that reference a header dictionary. This straightforward approach achieves compression ratios of roughly 40-60% on typical English prose while requiring minimal CPU resources for decompression. The Psion Series 3 ran on a 3.84 MHz NEC V30 processor with no floating-point unit, so TCR's low computational overhead was essential for smooth page-by-page reading. A key advantage is remarkable storage efficiency for its simplicity — users could carry dozens of novels on removable SSD cards that held only a few hundred kilobytes. The format found a dedicated user community among Psion enthusiasts who built libraries of compressed literature for portable reading years before smartphones existed. Though the Psion platform faded from the market in the early 2000s, TCR files can still be opened and converted by modern ebook tools, and the format stands as an early example of purpose-built mobile reading technology from the pre-smartphone era.
Developer: Barry Childress
Initial release: 1993
PPSX (PowerPoint Slideshow XML) is the Open XML counterpart to the legacy PPS format, introduced by Microsoft with Office 2007. Like PPTX, a PPSX file is a ZIP archive containing XML parts that describe slides, layouts, themes, and media assets according to the Office Open XML specification. The distinguishing characteristic is behavioral: opening a PPSX file launches the presentation directly in full-screen slideshow mode, bypassing the editing environment. This makes PPSX the preferred format for distributing finalized presentations where the audience should experience the content as a seamless visual narrative without exposure to the editing interface, slide sorter, or speaker notes panel. PPSX files support every visual feature available in PPTX including transitions, animations, embedded video and audio, hyperlinks, SmartArt, charts, and custom slide timings. One advantage is streamlined delivery — a PPSX file attached to an email or shared via a link opens as a polished presentation with a single click, requiring no instruction to the recipient. The XML-based foundation provides another benefit: PPSX files are typically much smaller than equivalent PPS files due to built-in ZIP compression, and their contents can be inspected or modified programmatically using standard XML tools. The format is supported for playback in PowerPoint, LibreOffice Impress, Google Slides (after upload), and various mobile presentation apps, ensuring broad cross-platform reach for distributed slide decks.
Developer: Microsoft
Initial release: January 30, 2007

Frequently Asked Questions

Why convert TCR to PPSX?

PPSX is a modern auto-playing slide show format. It takes your TCR text and packages it for instant, full-screen presentation without editing mode.

What apps open PPSX files?

Microsoft PowerPoint, LibreOffice Impress, Google Slides, and Apple Keynote all support PPSX. It launches in presentation mode in PowerPoint.

Can I switch to edit mode?

Yes. In PowerPoint, right-click the PPSX and choose Edit. Or simply rename the extension to .pptx to always open in editing mode.

Is PPSX compatible on mobile?

Yes. Microsoft PowerPoint mobile, Google Slides, and WPS Office on iOS and Android all open PPSX slide show files seamlessly.

Is this service free?

Convertio converts TCR to PPSX for free. Premium tiers offer batch conversion, priority processing, and expanded upload capacity.

How does PPSX differ from PPTX?

PPSX launches directly into slide show mode. PPTX opens for editing. The content and format capabilities are otherwise identical.