FTP File formats issue SSIS

Hi Experts,

I had an issue with Execute process task. I was download the files from FTP site.

Below is the Code I was using for my execute process task.

 /console /command "option batch on" "option confirm off" "open BT_LBL" "get  /Outgoing/Sales Report/British*.txt  \\FH-Server\D$\Filedownload\BT\Download\"  "exit" /log=\\FH-Server\D$\Filedownload\BT\Download\Log\WinSCPLog_20121009_130048.txt

It is working fine but it is not picking the files because I have mentioned British*.txt 

but the files looks like not the text files. I don't understand what extension I should have to give for these kind of files to pick