This is most likely coming from an old file table that was found on the drive, in such case it found the file entry and there will also be a point that tells you where to find the data.
You need that point to go see if there is anything left of that old data, when you use this type of recovery method.
You can also do a RAW scan without using partition and file tables.
In a recovery from RAW data this file will not show up as wallet.dat or ballet.dat because it's raw data, it does not have a filename anymore.
But it does have a header so in such case the file will pop up as ******.db because the recovery application picked up on it's database header.
You can test the file in bash with $ file and it will tell you the exact type.
$ file ******.db
******.db Berkeley DB (Btree, version 9, native byte-order)
It can also show something else but in case of a wallet it will show Berkeley DB.
So if you found a wallet.dat then this does not mean that you found the actual wallet, it could be only a reference point.
But if you found a .db then you can be sure it's a database file and i have found several but they were already emptied.
We found exactly 44 wallets.
f4204024.db: Berkeley DB (Btree, version 9, native byte-order)
f35048320.db: Berkeley DB (Btree, version 9, native byte-order)
f61344210.db: Berkeley DB (Btree, version 9, native byte-order)
f58211446.db: Berkeley DB (Btree, version 9, native byte-order)
f33779786.db: Berkeley DB (Btree, version 9, native byte-order)
f0208040.db: Berkeley DB (Btree, version 9, native byte-order)
f4673642.db: Berkeley DB (Btree, version 9, native byte-order)
f61399680.db: Berkeley DB (Btree, version 9, native byte-order)
f4673674.db: Berkeley DB (Btree, version 9, native byte-order)
f18790112.db: Berkeley DB (Btree, version 9, native byte-order)
f4294446.db: Berkeley DB (Btree, version 9, native byte-order)
f33779818.db: Berkeley DB (Btree, version 9, native byte-order)
f4294478.db: Berkeley DB (Btree, version 9, native byte-order)
f17315832.db: Berkeley DB (Btree, version 9, native byte-order)
f61408994.db: Berkeley DB (Btree, version 9, native byte-order)
f58252320.db: Berkeley DB (Btree, version 9, native byte-order)
f46519344.db: Berkeley DB (Btree, version 9, native byte-order)
f3442350.db: Berkeley DB (Btree, version 9, native byte-order)
f18790080.db: Berkeley DB (Btree, version 9, native byte-order)
f36736740.db: Berkeley DB (Btree, version 9, native byte-order)
f46519312.db: Berkeley DB (Btree, version 9, native byte-order)
f0208008.db: Berkeley DB (Btree, version 9, native byte-order)
f21199420.db: Berkeley DB (Btree, version 9, native byte-order)
f61344242.db: Berkeley DB (Btree, version 9, native byte-order)
f4205656.db: Berkeley DB (Btree, version 9, native byte-order)
f4203992.db: Berkeley DB (Btree, version 9, native byte-order)
f3380142.db: Berkeley DB (Btree, version 9, native byte-order)
f61349908.db: Berkeley DB (Btree, version 9, native byte-order)
f61408962.db: Berkeley DB (Btree, version 9, native byte-order)
f21199404.db: Berkeley DB (Btree, version 9, native byte-order)
f58252288.db: Berkeley DB (Btree, version 9, native byte-order)
f35048288.db: Berkeley DB (Btree, version 9, native byte-order)
f61090356.db: Berkeley DB (Btree, version 9, native byte-order)
f61340690.db: Berkeley DB (Btree, version 9, native byte-order)
f61090324.db: Berkeley DB (Btree, version 9, native byte-order)
f3380174.db: Berkeley DB (Btree, version 9, native byte-order)
f51770738.db: Berkeley DB (Btree, version 9, native byte-order)
f4205688.db: Berkeley DB (Btree, version 9, native byte-order)
f17315864.db: Berkeley DB (Btree, version 9, native byte-order)
f58211414.db: Berkeley DB (Btree, version 9, native byte-order)
f61349876.db: Berkeley DB (Btree, version 9, native byte-order)
f61414436.db: Berkeley DB (Btree, version 9, native byte-order)
f36736772.db: Berkeley DB (Btree, version 9, native byte-order)
f61399648.db: Berkeley DB (Btree, version 9, native byte-order)
Dumped them with db-utils to see which ones were intact and which ones were corrupted or encrypted.