Raw format refers to a type of digital file that captures unprocessed data from a camera's sensor. Unlike standard image formats like JPEG or PNG, which compress and alter the image, raw files retain all the original information. This allows for greater flexibility in post-processing, enabling photographers to adjust exposure, color balance, and other settings without losing quality. Raw files are typically larger than compressed formats due to their unaltered nature. They require specific software, such as Adobe Lightroom or Capture One, to open and edit. Photographers often prefer raw format for its ability to produce high-quality images suitable for professional use.