You should be able to create a POTX template from an existing PowerPoint Presentation using the Save As.. function.
Convert Microsoft PowerPoint Open XML presentation to Microsoft PowerPoint Open XML presentation template.
We have found 5 software records in our database eligible for .pptx to .potx file format conversion.
Microsoft Windows software - convert pptx to potx on Windows
A presentation program from the Microsoft Office suite
Convert from pptx file format
|Yes, Microsoft PowerPoint supports pptx file conversion as a source file type.||Yes||Yes||pptx editor||Yes||No||No||No|
|Yes, Microsoft PowerPoint supports potx file conversion as a target file type.||Yes||Yes||potx editor||Yes||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned pptx to potx. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A free set of productivity tools for creating and editing of various documents, spreadsheets or presentations from IBM
Apple macOS / Mac OS X software - convert pptx to potx on OS X
Mac version of popular presentation software from Microsoft
Multiplatform software - convert pptx to potx on any platform
Powerful multimedia presentation software tool from LibreOffice suite
Free presentation program from OpenOffice.org