Both the JT and SLDPRT CAD files are fairly common, so at least some of the dedicated CAD translators should be able to perform this type of conversion. Probably same can be achieved with some exchange format that is easier convertible to SolidWorks SLDPRT.
Convert JT Open CAD 3D model format to SolidWorks CAD part.
We have found 2 software records in our database eligible for .jt to .sldprt file format conversion.
Microsoft Windows software - convert jt to sldprt on Windows
A dedicated CAD converter with a large file format support that allows users to convert (translate) CAD designs or drawings between different formats. CrossManager is a commercial product, you will need to purchase a license. It is available in English, French, German, Italian, Czech, Chinese, Russian and Korean language.
Convert from jt file
to sldprt file
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned jt to sldprt. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
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