Both .cmtx and .dev files originate from e-Sword bible study software. However these files are unrelated and contain data that cannot be converted between each other directly. But perhaps some sort of partial conversion is possible using e-Sword.
Convert e-Sword commentary data to e-sword devotional file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert cmtx to dev on Windows
e-Sword is a bible study computer software created by Rick Meyers and first released in 2000.
Convert from cmtx file
to dev file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.