If you happen to know how one of these sub-records is used (or know definitively that they aren't used), know the format of the sub-record, or have other information, please post.
They are:
- XRGD - found in ACHR,ACRE records
- Description: Ragdoll Data.
- Used by Engine: Likely.
- Format: Unknown.
- Description: Ragdoll Data.
- NIFT - found in CREA records
- Description: Texture Files Hashes.
- Used by Engine: Likely.
- Format: Unknown.
- Notes: Might be similar to MODT.
- Description: Texture Files Hashes.
- PGAG - found in PGRD records
- Description: Unknown use.
- Used by Engine: Unused by the game, but used by the CS.
- Format: Unknown.
- Description: Unknown use.
- DATA - found in LAND records
- Description: Possibly various flags related to the LAND record.
- Used by Engine: Unknown.
- Format: Partially deciphered at http://www.uesp.net/wiki/Tes4Mod:Mod_File_Format/LAND.
- Notes: Possibly flags of some nature according to commented out code in TES4Edit.
- Description: Possibly various flags related to the LAND record.
- OFST - found in TES4,WRLD records
- Description: Unknown use.
- Used by Engine: Unknown.
- Format: Unknown.
- Notes: Possibly offsets, or some sort of optimization record for loading Oblivion.esm. May be vestigial, and not be used by engine.
- Description: Unknown use.
- DELE - found in TES4 records
- Description: Unknown use.
- Used by Engine: Probably not.
- Format: Unknown. Always zero filled.
- Notes: Believed to be vestigial, and not be used by engine.
- Description: Unknown use.
- FGGS,FGGA,FGTS - found in RACE,NPC_ records
- Description: FaceGen data (FaceGen Geometry-Symmetric, FaceGen Geometry-Asymmetric, and FaceGen Texture-Symmetric respectively).
- Used by Engine: Yes.
- Format: Unknown.
- Description: FaceGen data (FaceGen Geometry-Symmetric, FaceGen Geometry-Asymmetric, and FaceGen Texture-Symmetric respectively).
- MODT - found in Various records
- Description: Model Texture Files Hashes.
- Used by Engine: Likely.
- Format: Partially deciphered by http://forum.uesp.net/viewtopic.php?f=10&t=272&sid=f12f5ea84bee6362a5486ebe0ac6dffc.
- Description: Model Texture Files Hashes.
These have been removed from the above list since they're now known.
- DATA - found in LVLI records
- Description: Flags.
- Used by Engine: The CS changes it to the LVLF entry, so the game likely does the same.
- Format: Any value other than 0 is equal to LVLF's Calc for each item in count.
- Notes: Old flag field, superseded by LVLF.
- Description: Flags.
- SCDA - found in SCPT,QUST,INFO records
- Description: Compiled script.
- Used by Engine: Yes.
- Format: Described at http://www.uesp.net/wiki/Tes4Mod:Mod_File_Format/SCPT.
- Description: Compiled script.