ExifTool
DR4 - Canon DPP version 4 Recipe
EXIF - Exchangeable Image File Format metadata (TIFF-based)
EXV - Exiv2 metadata file (JPEG-based)
ICC, ICM - International Color Consortium color profile
MIE - Meta Information Encapsulation (MIE specification)
VRD - Canon DPP Recipe Data
XMP - Extensible Metadata Platform sidecar file
PNG, JNG, MNG - Portable/JPEG/Multiple-image Network Graphics
PPM, PBM, PGM - Portable Pixel/Bit/Gray Map
PSD, PSB, PSDT - PhotoShop Drawing / Large Document / Template
QTIF, QTI, QIF - QuickTime Image File
RAF - FujiFilm Raw Format
RAW - Panasonic Raw (TIFF-based)
RW2 - Panasonic Raw 2 (TIFF-based)
RWL - Leica Raw (TIFF-based)
SR2 - Sony Raw 2 (TIFF-based)
SRW - Samsung Raw format (TIFF-based)
THM - Canon Thumbnail (JPEG)
TIFF, TIF - Tagged Image File Format
VRD - Canon DPP Recipe Data
WEBP - Google Web Picture (RIFF-based)
X3F - Sigma/Foveon raw
XMP - Extensible Metadata Platform sidecar file