Yes, but this is not sufficient. You also have to uncompress those entries, and it requires some programming knowledge than using a library and print, it requires too to know how those coins works, their storage format (compact size, varint, etc)... Not hard, not trivial either.
Yes, it's true.
However, if coin uses bitcoin codebase from 0.15 or later, it's quiet easy, one db entry one utxo.
Before that it's somewhat complicated because one db entry contained the whole transaction.
But format of this entry was well documented in coin.h file:
https://github.com/bitcoin/bitcoin/blob/v0.10.1/src/coins.h#L20Also, if I'm not mistaken BTCP script has function for decoding old format as well
https://github.com/BTCPrivate/utxo-dump/blob/master/utxo/chainstate.pyparse_ldb_value_old line 57