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An .arw file is a Sony Alpha Raw digital camera image. Like other digital camera raw images, they contain uncompressed, unprocessed data from a digital camera's sensor. Raw image formats like ARW contain extra data not found in compressed image formats, allowing photographers to have a lot more control in the editing process to adjust brightness, contrast, and color.

ARW files can be viewed in many image-viewing applications, like Microsoft Photos, Apple Preview, and Sony's Imaging Edge. They can be converted into other image types to share the photos. Converting one to JPEG (.jpg) will make the file a lot smaller using lossy compression that slightly reduces image quality. They can also be easily converted to TIFF (.tif) or PNG (.png) to losslessly compress the images, although they will still be much larger than JPEG images.

About File Helper

File Helper is a free web-based file utility that can open Sony Alpha Raw Image files and over 150 other file formats directly in your web browser. It displays file properties, including metadata, and image EXIF data, along with information about the corresponding file type. File Helper can also view and convert images to several common formats. Have an unknown file or a file without an extension? No problem — File Helper can identify over 15,000 file types.

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