Oblivion Mod:Mod File Format/LVLI

LVLI records hold information on leveled item list. Subrecords known to occur in an LEVI record include (confirmed):

• EDID (required): Editor ID (variable length string)
• LVLD (required): Chance none value (1 byte)
• LVLF (required): Level list flags (1 byte)
• LVLO (optional, mult): Level list item (12 bytes or 8 bytes)
• DATA (optional): Only occurs in a couple LVLI records in oblivion.esm (1 byte)

LVLF Subrecord

This 1-byte (confirmed) subrecord stores the leveled list flags.

0x01 = Calculate for All Levels <= Player's Level

0x02 = Calculate for Each Item in Count

Some of the older leveled list entries do not have an LVLF subrecord. Instead, the high-order bit of the LVLD subrecord is used for the "calculate for all levels <= player's level" flag, and the DATA subrecord is used for the "calculate for each item in count" flag.

LVLO Subrecord

There will be one of these 12-byte or 8-byte (confirmed, almost always 12-byte) subrecords for each item in the list.

Name	Type/Size	Info
Level	2 (word)	Item level
Unknown1	2 (word)	?
FormID	4 (dword)	Item form ID
Count	2 (word)	Item count
Unknown2	2 (word)	?

For new ESPs the Unknown1/Unknown2 seem to be the same value (0x02D6). The values vary in Oblivion.esm and are not always the same.

DATA Subrecord

This 1-byte (confirmed) older format subrecord stores the Calculate for Each Item in Count flag.

Any value other than 0x00 = Calculate for Each Item in Count