Start by selecting the type of your account in the drop-down list.
To download quotes, select a currency pair or financial instrument, trading timeframe (M1, M5, M15, M30, H1, H4, D1, W1, MN), and the desired year and month.
You will be prompted to download a ZIP file, which you should save to your computer. After saving the archive, unzip it to get a CSV file.
Note that you may need to download several files, depending on the period being analyzed and the selected timeframe:
In your MetaTrader terminal, press F2 and select Tools → History Center.
Press Import in the window that opens.
In the import window, press Browse to specify the path to the CSV file that you saved to your computer. After selecting the file, press OK in the file open dialog and the import window.
The History Center window will now show the quotes history for the selected currency pair and timeframe.