User:Shaneomack91/XRC

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File Layout

The following table describes the overall layout of an XRC resource file:

XRC File Header
Attribute Table
Data Section
(Optional) Data Checksum
(Optional) Data Signature

XRC File Header

The following table describes the layout of an XRC file header:

Field	Size	Allowed Values	Description
magicNumber	0x4	0x2f435258 ("XRC/")	Identifies a valid XRC file.
fileType	0x4	0x3A?????? ("???:")	Identifies the application-specific file type.
reserved	0x4	0x00000000	Reserved for future expansion, must be 0.
numberOfAttributes	0x4	0x00000000 - 0x00FFFFFF	Specifies the number of entries in the attribute table.
dataOffset	0x4	0x00000000 - 0x7FFFFFFF	Specifies the offset, in bytes, from the beginning of the file to the beginning of the data section.
dataLength	0x8	0x0000000000000000 - 0xFFFFFFFFFFFFFFFF	Specifies the length of the data section.
dataChecksum	0x4	0x00000000 - 0xFFFFFFFF	CRC-32 of the data, using polynomial 0xEDB88320