| First word is the hex ID from image filename, second word is the hex ID of the sub-dir under the <ExtdataIDLow> directory (all-zero for Quota.dat)
+
| u64 extdataID
|-
|-
| 0x4
| 0x4
−
| 1 for Quota.dat, 0 otherwise
+
| 0 for Quota.dat, 1 otherwise
|-
|-
| 0x8
| 0x8
−
| Same as the previous u64
+
| u64 imageID: First word is the hex ID from image filename, second word is the hex ID of the sub-dir under the <ExtdataIDLow> directory (all-zero for Quota.dat)