POTM to SIX Converter

Export POTM template slides to DEC SIXEL format online

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Terminal Graphics

SIX output renders directly in SIXEL-compatible terminal emulators — bring POTM slide visuals into command-line workflows without leaving the terminal.

Cloud-Based Engine

Processing runs on Convertio servers. No DEC hardware, terminal emulator, or PowerPoint installation needed on your machine.

Broad Access

Generate SIX files from any browser on any device. The output works on modern SIXEL terminals, vintage DEC hardware, and compatible emulators alike.

How to convert POTM to SIX

1

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

2

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

3

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

About formats

POTM (PowerPoint Template with Macros) is a macro-enabled template format for Microsoft PowerPoint, introduced with Office 2007 as part of the Office Open XML family. POTM combines the template functionality of POTX — providing reusable slide masters, layouts, themes, and design foundations — with the ability to embed VBA (Visual Basic for Applications) macro code that executes in presentations created from the template. The format is a ZIP archive containing the standard XML parts for slide masters, layouts, and themes, plus a vbaProject.bin stream housing the VBA project. This combination enables organizations to distribute not just visual consistency but also functional automation: every presentation created from a POTM template inherits both the design system and the programmatic capabilities built into it. Common use cases include templates that automatically populate slides with data from corporate systems, enforce content approval workflows, insert standardized disclaimer slides, or provide custom ribbon tabs with organization-specific tools. One advantage is embedded workflow automation — a POTM template can include initialization macros that configure the presentation environment, add custom menu options, and connect to external data sources the moment a new presentation is created from it. The distinct .potm extension serves a security purpose as well, enabling administrators to apply differentiated trust policies for macro-containing templates versus standard POTX files. POTM is supported exclusively in Microsoft PowerPoint desktop editions where VBA execution is available.
Developer: Microsoft
Initial release: January 30, 2007
SIX is a file extension for SIXEL (Six Pixel) graphics data, a bitmap graphics format developed by Digital Equipment Corporation (DEC) in 1983 and introduced with the LA50 dot matrix printer. SIXEL encodes images as a sequence of printable ASCII characters, where each character represents a column of six vertical pixels (a 'sixel') — the character's ASCII value minus 63 provides a 6-bit binary pattern, with each bit controlling one pixel in the vertical column. The encoding is structured as a series of sixel bands (each six pixels tall) across the image width, with control sequences for color selection (up to 256 registers with HLS or RGB specification), repeat counts (run-length encoding for efficiency), carriage return, and newline commands. SIXEL data is transmitted to the output device using DEC's standard escape sequence protocol, embedded within the text stream alongside regular character output. Originally designed for DEC's line of printers and later supported by DEC VT-series terminals (VT240, VT330, VT340), SIXEL has experienced a remarkable revival in modern terminal emulator software. One advantage is terminal-native image display: SIXEL allows images to be rendered directly within a text terminal session without requiring a graphical window system, enabling command-line tools to display graphs, photographs, and previews inline with text output. This capability has driven adoption in modern terminals like mlterm, xterm, WezTerm, and foot. SIX/SIXEL data can be generated by ImageMagick, libsixel, and chafa, and viewed in any SIXEL-capable terminal emulator.
Initial release: 1983

Frequently Asked Questions

Why convert POTM to SIX?

SIX files display graphics directly in SIXEL-capable terminals — useful for showing slide content in command-line environments without a GUI.

What terminals support SIX?

xterm (with SIXEL enabled), mlterm, mintty, and the original DEC VT240/VT340 terminals render SIX graphics. Some modern terminals add support too.

Is SIX the same as SIXEL?

SIX is an alternative file extension for the same DEC SIXEL bitmap format. Both use identical encoding — six-pixel-high columns as escape sequences.

Does conversion strip POTM macros?

Completely. SIX stores only bitmap data encoded as terminal escape sequences — no VBA code or template metadata is carried over.

Does SIX support color?

Yes — SIXEL supports palette-based color through DEC color registers. Slide colors are mapped to the available terminal palette.

Is this free?

Convertio handles POTM to SIX conversions for free. Premium plans offer expanded file size limits and faster processing.