How to get items out of locked strongboxes???

[Hydreigon635]

A certain user has stolen a bunch of items from various players on my server, and I believe he has put all the items he stole in a strongbox in what was his base before I banned him. He has the strongbox set to "Owner Only." I tried to use MCEdit to change the access to Public, but the application refused to cooperate. This has apparently been going on for some time and users have only just now noticed it, so rolling back the server is not an option. (eg, "Hey, that's where my X got off to!") How do I get the items out of his strongbox and back to their rightful owners?

Edited October 6, 2014 by Hydreigon635

[disconsented]

Creative mode/OP IIRC

[Kalbintion]

/config/cofh/CoFHCore.cfg is your friend

####################
# security
####################

security {
    # Enable this to allow for Server Ops to access 'secure' blocks. Your players will be warned upon server connection. (Default: false)
    B:OpsCanAccessSecureBlocks=false

    # Enable this to be warned about Ops having access to 'secure' blocks when connecting to a server. (Default: true)
    B:OpsCanAccessSecureBlocksWarning=true
}

Give yourself OP if you havent already and ull be able to open it. (If the above config isnt clear, mark the first false setting to true, then run the server)