If you are looking for a way how you could convert partial downloaded file - PART to JPG images, then you can't find it, because it is not possible. You might try to rename part to JPG and view it using some image viewer, but in most cases it will be corrupted and you will either see nothing, or only some parts. You need to re-download the file again.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
If you find entry that you feel is flagged as bad wrongly, please tell us in the discussion below with as much as information as possible so we can fix it.