This is the Switch equivalent of 3DS exheader. This is the 0x408-byte file with extension ".npdm" in {Switch ExeFS}.

Offset Size Description
0x0 0x80 META
0x80 0x200 RSA-2048 signature, followed a RSA-2048 modulus for {Switch version of NCCH header}?(Like 3DS)
0x280 0xD0 ACID
0x350 0xB8 ACI0

META

Offset Size Description
0x0 0x4 Magicnum "META".
0x4 0x7C ?

Switch version of 3DS "System Control Info"?

ACID

Offset Size Description
0x0 0x4 Magicnum "ACID".
0x4 0xCC ?

Switch version of 3DS ACI(Access Control Info)?

ACI0

Offset Size Description
0x0 0x4 Magicnum "ACI0".
0x4 0xB4 ?

Switch version of AccessDesc?