I wasn't sure if I had a balance myself so I just went through this.
Download this file WARNING FILE CONTAINS VIRUS, DO NOT RUN EXECUTABLES INSIDE ZIP. To be safe, extract the files inside MtGox2014Leak.zip\backoffice\Exports __ONLY__: https://archive.org/details/MtGox2014Leak
The exports folder contains 2 zip files, one contains a list of transactions in csv format, the other contains the output of a sql query displaying all balances.
Go into your e-mail records and find any transaction id, it will look like a v1 UUID (example: 682b3d0a-67d7-4b62-8ed4-4e1d39d54a69)
Look for it inside the btc_xfer_report.csv. The UUID before it on the same line is your wallet.
Look for your wallet UUID inside the mtgox_balances file. If it's not there you either didn't have a wallet at the time of the dump, or your balance was 0.
Download this file WARNING FILE CONTAINS VIRUS, DO NOT RUN EXECUTABLES INSIDE ZIP. To be safe, extract the files inside MtGox2014Leak.zip\backoffice\Exports __ONLY__: https://archive.org/details/MtGox2014Leak
The exports folder contains 2 zip files, one contains a list of transactions in csv format, the other contains the output of a sql query displaying all balances.
Go into your e-mail records and find any transaction id, it will look like a v1 UUID (example: 682b3d0a-67d7-4b62-8ed4-4e1d39d54a69)
Look for it inside the btc_xfer_report.csv. The UUID before it on the same line is your wallet.
Look for your wallet UUID inside the mtgox_balances file. If it's not there you either didn't have a wallet at the time of the dump, or your balance was 0.