Thank you for the reply AndrewAMD. I only have the data that came with the installation.
I have now downloaded the 1GB data file with the 28 forex pairs from 2010 onwards.

If I don't specify a start and date, only the asset, I see the output says "2010-2015"... where does that come from? The .t6 files run from 2005 to 2019.