EIP format is a photo package made using the Capture One software and pretty much a ZIP file that contains digital RAW photograph (often TIFF) together with various settings files. You can actually extract the content and convert/export the image manually to JPEG.
But these packages are meant to be opened in photo editors that can apply all the saved settings to the picture and work with that. So pretty much every tool that supports reading EIP format can be used for eip to jpg conversion.
Updated: October 10, 2023