When you edit your recording (.camrec and .trec in later editions) using Camtasia Studio, the program can save the project as a .camproj file. These files are just references, a bookkeeping mechanism for the edits user makes in his video. So a conversion is not possible, but generating .camproj file is possible.
Convert Camtasia Studio video recording (version 8.3 or earlier) to Camtasia Studio project.
We found one software available in the database for this conversion.
Microsoft Windows software - convert camrec to camproj 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.