FileInfo.com - The File Extensions Resource

.RAW File Extension

File Type 1	Raw Image Data File (Most common)
File Format	File
Common?	No
File Description	24-bit RGB graphic containing uncompressed, raw image data; settings such as exposure and white balance can be edited with software after saving the image to a computer.
Program(s) that open raw files	Mac: Adobe Photoshop Elements for Mac; Any image viewer/editor that supports RAW files Windows: Adobe Photoshop Elements; Corel Paint Shop Pro; ACDSee Photo Manager; ACD Systems Canvas; Any image viewer/editor that supports RAW files

File Type 2	Raw Audio Data
File Format	Standard File
Common?	No
File Description	Uncompressed PCM (pulse code modulation) signed audio data file; contains raw audio data stored in a binary format; does not contain any header information or use an audio codec.
Program(s) that open raw files	Mac: BIAS Peak; NCH Switch; NCH WavePad Windows: Adobe Audition; FMJ-Software Awave Audio; NCH Switch; NCH WavePad; Wavosaur

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/raw