NSP (File Format)

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NSP (Nintendo Submission Package) is a file format on the Nintendo Switch used for storing data used for a program, usually a game.

File Format

Header

Offset Type Description
0x00 Char[4] File magic. Always PFS0 in ASCII.
0x04 UInt32 Number of files.
0x08 UInt32 Size of string table in bytes, including padding. File data offsets are relative to the end of the string table.
0x0C UInt32 Unknown.

File Entry

Offset Type Description
0x00 Int64 File data offset, relative to the end of the string table. Points to the beginning of the file data.
0x04 Int64 File size in bytes.
0x08 Int64 Name offset, relative to the start of the string table. Points to a null-terminated string.

Tools

The following tools can handle NSP files:

  • (none)