Finder information

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File Format
Name Finder information
Ontology

Finder information is a set of data structures containing Macintosh-specific metadata about a file or folder, including the presentation of its icon.

Formats that can include such information include HFS, AppleDouble, MacBinary, and ZIP (in some Mac-specific extra fields).

Certain details about the data structures have evolved over the years, so any given source of information about them might be incomplete.

Format details

Information about a file is contained in two 16-bytes structures, named FInfo and FXInfo. Information about a folder is contained in two 16-bytes structures, named DInfo and DXInfo.

The first 8 bytes of FInfo contain the Macintosh type/creator codes.

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