There is only one file type that uses the .TWM extension:
Module file created by theWord (also "The Word"), a free Bible reading program; acts like a plug-in that adds features to the software, such as a new Bible translation, commentary, image, or map; uses an SQLite database format.
TWM files can be installed simply by placing the files in one of the subfolders of the C:\ProgramData\The Word\ directory. Modules can be created by selecting from the application menu.
Updated: June 12, 2012