Everthing is going allright , however there are some points about output file name  when using  *.TXT :

1) There is a time frame suffix at  file name   D for daily  , 30 for 30 minutes .   Is it possible to get rid of these suffix?
2) The special characters have been changed to  underscore ( _ )  eg. the output file name of  RS.1 will be  RS_1D

What I am looking for is the  file name ( output) that is exactly the same as security name.   I am trading in countries other than US and  the local data provider  use two special characters ( @ and period) to seperate security class  eg. BWR@W  vs  BWR.1  

Thank you.