The .costyle file contains settings used to retouch photos. Capture One program uses files with costyle extension. The file type is not meant to open directly. There is no software to open and work with it directly. This is usually the case for some internal data files, caches, temporary files.
Files with COSTYLE extension are Settings Files. The Settings Files subset has 1305 various formats. Phase One Capture One supports COSTYLE files. It is the most used program to handle such files. Yet 1 other tool may also be used.
The list below shows programs compatible with COSTYLE files. It is divided by operating system they are on. Capture One Style File. Phase One. Image styles file made by Capture One. It edits and manages digital photos. Stores image appearance settings. Allows users to give an image a certain look. Can store presets with metadata. You need the latest version of the software. It supports the current COSTYLE format. You need to check the file for viruses. Scan it with antivirus software.