Importing history

[Forex Trader]

When I test an Expert Advisor on a history imported from http://www.fin-rus.com/analysis/export/default.asp I get a completely different results from the results I get when I test the same Expert Advisor on the history stored in MetaTrader, it’s like the two histories are not identical, even though I was careful to choose the same period and time frame, is there a way I can import the same history of pair of currency that is identical to the history of the company I trade with?