Need help on MT4 data conversion

I''m trying to convert 15 min data from the MT4 History center in a text format accepted by APS with no success. I delete the header as per the instructions in the link below and then I save the file. Yet, APS conversion cannot find the file. Here is the link with the instructions:

http://www.tradingpatterns.com/Software/mt/mt.html

Thank you in advance

Bill