Oh, shoot... I'm extremely sorry about this... I didn't see this post was also you... My apologies.
I'm affraid that the CSV exported from there is the most itelligible wait to do this at this time. I've tried to code somthing myself in order to make sense out of this exported data and its not easy to do... Everything are references to IDs to transactions IDs to currency IDs and account IDs... Fun fun fun...
I've been trying to have this tool for myself, so if I can figure something out, I'll let you know. Otherwise you can try it yourself... The easiest way I found was to use Javascript to connect to a full node and request all the account history, but from there, you will need to parse the data yourself, so at this point, the CSV is better.
Sorry I could not help.
Regards,