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THMX PPTX
File conversion

Convert THMX to PPTX

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Is it possible to convert THMX to PPTX?
Yes - THMX converts to PPTX.

You don't convert a theme into a presentation, but you apply it: open a .pptx in PowerPoint, Design > Browse for Themes, pick the .thmx. The theme's colors/fonts/ effects are baked into the saved .pptx. db lists pptx with software_count 0 - it is 'apply', not a file converter.

Also to PPTX: KEY · POTX · POT

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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How to convert THMX to PPTX

Converting a .THMX file to .PPTX lets you open the content in software that prefers the .PPTX format, though some details may change compared with the original. We are still putting together the list of programs that handle .THMX files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

About these formats

.THMX Microsoft Office Theme

A THMX file is a Microsoft Office theme - a reusable package of colors, fonts and visual effects shared by Word, Excel and PowerPoint. You apply it from the Design tab (or Page Layout in…

Open .THMX details →
.PPTX Microsoft PowerPoint Open XML Presentation

A PPTX file is a Microsoft PowerPoint presentation - the standard slide-deck format since PowerPoint 2007. You do not need to buy Office to open one: LibreOffice Impress, Google Slides, and…

Open .PPTX details →