.DC3 File

The dc3 file extension is mainly used for one of the medical images types in DICOM format.

Image file saved in the Digital Imaging and Communications in Medicine (DICOM) image format. Created by the National Electrical Manufacturers Association (NEMA) as a standard for distributing and viewing medical images, such as MRIs, CT scans, and ultrasound images.

Files with dc3 file extension can be generally found as DICOM images used in medicine.

How to open:

You can view these files using XnView.

How to convert:

Probably can be exported to other formats.