By following these steps, you should be able to successfully install and use the Camera Raw plugin in Photoshop CS6, enhancing your ability to work with RAW images from your digital camera.
If you are using a camera released after 2015, you must use the free Adobe DNG Converter to convert your proprietary raw files (e.g., .CR3, .ARW, .NEF) into a universal .DNG format.
Camera Raw is a plugin developed by Adobe that allows Photoshop CS6 to read and process "raw" image files—unprocessed data straight from a digital camera’s sensor. Unlike JPEGs, raw files retain all the dynamic range, color depth, and detail captured at the moment of exposure.
If your camera was released after mid-2015—such as many newer Sony Alpha, Canon EOS R, or Nikon Z models—the 9.1.1 plugin will not open your RAW files directly. How to Install Camera Raw 9.1.1 on CS6