Using the Camtasia Studio you can export the recordings to Windows Media Video (*.wmv). You can do this by opening your *.camrec file in Camtasia (double click on it will do) and then right clicking on the file in the program and selecting "Extract camera contents.." option. A *.wmv file along with some other files will be saved in the specified location.
Convert Camtasia Studio recorder file to Windows Media Video file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert camrec to wmv on Windows
A screen capture and video editing software
Convert from camrec file format
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.