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*Details: File format summary



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Name Resource Interchange File Format (RIFF)
Other names  
Identifiers Library of Congress Format Description Identifier:  fdd000025
PUID:  fmt/1886
Classification Audio, Video
Description RIFF (Resource Interchange File Format) is a structured framework for multimedia files. Rather than being a precise file format, RIFF serves as a broader structure that encompasses specific file formats, including several subtypes. The fundamental component of a RIFF file is a chunk, identifiable by a unique four-character code. Applications such as viewers can bypass chunks with unfamiliar codes. A core RIFF chunk starts with a second distinctive four-character code identifying the specific RIFF variant or subtype. Applications rendering RIFF files can disregard chunks with unknown labels. Chunks can also be layered within each other. While the RIFF structure underpins several critical file formats, it has not been employed as the enclosing structure for any formats developed post the mid-1990s.
Byte order  
Related file formats Has lower priority than CorelDraw Drawing (6.0)
Has lower priority than Corel R.A.V.E. (1)
Has lower priority than Corel Presentation Exchange File (5.0)
Has lower priority than Corel Presentation Exchange File (6 and Later)
Has lower priority than CD Audio  
Has lower priority than CorelDraw Drawing (7.0)
Has lower priority than CorelDraw Drawing (8.0)
Has lower priority than CorelDraw Drawing (9.0)
Has lower priority than CorelDraw Drawing (10.0)
Has lower priority than CorelDraw Drawing (11.0)
Has lower priority than CorelDraw Drawing (3.0)
Has lower priority than Waveform Audio  
Has lower priority than Audio/Video Interleaved Format  
Has lower priority than Microsoft Animated Cursor Format  
Has lower priority than CorelDraw Drawing (12.0)
Has lower priority than CorelDraw Drawing (X3)
Has lower priority than Corel R.A.V.E. (2)
Has lower priority than Corel R.A.V.E. (3)
Has lower priority than CorelDraw Drawing (5.0)
Has lower priority than CorelDraw Drawing (4.0)
Has lower priority than WebP (Lossy)
Has lower priority than WebP (Lossless)
Has lower priority than WebP (Extended)
Has lower priority than RIFF Palette Format  
Has lower priority than CD-ROM/XA (eXtended Architecture)  
Has lower priority than Microsoft xWMA  
Has lower priority than Downloadable Sounds Audio  
Has lower priority than RIFF-based MIDI  
Has lower priority than DirectMusic Segment File Format  
Has lower priority than DirectMusic Style File Format  
Has lower priority than QCP Audio File Format  
Has lower priority than 4X Movie File  
Has lower priority than CorelDraw Drawing (8 Bidi)
Has lower priority than Melco OFM Project (11)
Technical Environment  
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source New York Public Library / New York Public Library
Source date 01 Aug 2023
Source description  
Last updated 01 Aug 2023
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