TCR to PPTM Converter

Free TCR to macro-enabled PowerPoint conversion

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Macro-Ready Presentation

Convert TCR text into PPTM — a PowerPoint format that supports VBA macros for automated slide generation and interactive content.

Full Editing Power

The PPTM output gives you complete creative control. Add animations, charts, images, and macro-driven interactivity to your converted text.

Secure Conversion

Convertio removes uploaded TCR files immediately after conversion. PPTM outputs are deleted from servers within 24 hours automatically.

How to convert TCR to PPTM

1

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

2

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

3

Let the file convert and you can download your pptm 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
PPTM is a macro-enabled presentation format for Microsoft PowerPoint, introduced with Office 2007 as part of the Office Open XML family. Structurally identical to PPTX — a ZIP archive containing XML parts for slides, layouts, themes, and media — PPTM adds the ability to store and execute VBA (Visual Basic for Applications) macro code within the presentation. The deliberate separation of macro-enabled (.pptm) and macro-free (.pptx) extensions was a security design decision: users and administrators can identify macro-containing files by extension alone, and security policies can block or warn about macro-enabled formats while freely allowing standard PPTX files. PPTM files store VBA projects in a dedicated binary stream (vbaProject.bin) within the ZIP package, alongside the same XML slide content used by PPTX. Macros in PowerPoint presentations power automated slide generation, custom ribbon interfaces, interactive quizzes, data-driven content updates, and integration with external data sources. One advantage is workflow automation — PPTM enables repeatable processes like generating monthly report decks from database queries or updating financial charts across dozens of slides with a single button click. The format preserves full compatibility with the OOXML specification, meaning all standard PowerPoint features — transitions, animations, embedded media, SmartArt — work identically to PPTX. PPTM is supported by Microsoft PowerPoint on Windows and macOS, with macro execution limited to the desktop application.
Developer: Microsoft
Initial release: January 30, 2007

Frequently Asked Questions

Why convert TCR to PPTM?

PPTM supports VBA macros alongside standard slides. Convert TCR text to PPTM when you plan to add automation or interactive elements later.

What software opens PPTM?

Microsoft PowerPoint is the primary editor with full macro support. LibreOffice Impress, Google Slides, and Keynote open PPTM but may skip macros.

Are macros created during conversion?

The conversion creates a PPTM container ready for macros. You can then write and attach VBA macros using PowerPoint developer tools.

Is PPTM safe to share?

PPTM files can contain macros, so recipients may see a security prompt. Share with trusted parties or strip macros by saving as PPTX instead.

Does this conversion cost money?

No, TCR to PPTM conversion on Convertio is free. Paid tiers unlock batch conversion and higher upload limits for frequent users.