We have found 2 software records in our database eligible for .clp to .jpg file format conversion.
It seems that .clp files are typically encountered as some kind of older pictures and it appears that these can be converted to some more common formats, including JPEG (.jpg, .jpeg). Your best option for this conversion would be to use some graphics converter with broad format supported, such as XnView MP.
Updated: September 15, 2016
A software suite used for 3D CAD/DCC + Animation/Model/NURBS/Skinning translation, optimization and viewing.
A free (for non-commercial purposes) powerful cross-platform media browser, viewer and converter. Compatible with more than 500 formats and also supports export to 70 different file formats. It works on Windows, Linux and macOS (OS X).