It should be quite possible to create OpenOffice.org text document template in STW format to an ODF text document using many older or currently used text editors and word processors, especially those based on the ODF architecture.
Convert ODF text document to OpenOffice.org text document template.
We have found 6 software records in our database eligible for .odt to .stw file format conversion.
Microsoft Windows software - convert odt to stw on Windows
Older multi-platform office productivity suite
Convert from odt file format
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 odt to stw. 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 word processing program, part of GNOME office productivity bundle
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 odt to stw on OS X
A full-featured set of office applications for Mac OS X
Multiplatform software - convert odt to stw on any platform
Word processor and text editor from OpenOffice.org suite
Full-featured word processing and desktop publishing tool from LibreOffice suite