STP file contains 3D object project saved in STEP (Standard for the Exchange of Product Data) format. STP format is similar to less frequently used STEP format. STP is a ASCII text file that conforms to ISO 10303-11 standard specification, sometimes referred to as EXPRESS.
Files with .CATPART extension contain 3D CAD/CAM/CAE model parts and structured data associated with them. CATPART files are saved in a proprietary format developed by CATIA. CATPART files constitute a larger project or a functional element of such project created using CATIA V5.
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the STP file after converting to CATPART may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from STP to CATPART to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting STP to CATPART does not meet your expectations, you can simply try to find on the Internet a different version of your file in STP format, properly converted to a CATPART file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file STP the desired result was not achieved, you can try to change the format of STP file to other than CATPART. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your STP file converted by someone else, and the attempt to convert it to CATPART on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the STP file in its original format (without conversion to CATPART file). Such a solution will be difficult to implement, but it certainly will give the best result.