Unable to Export Iflows from NWDS

Hi,

I am trying to export Iflows using file system from NWDS as given in the sap help. Link for reference

http://help.sap.com/saphelp_nw73ehp1/helpdata/en/db/125aab8cb74b25af3bb98857f1f1b4/content.htm

when I am selecting the location in my system to save the file, the export is happening successfully but I am unable to see any .tpz file in my system selected to save the file. Please provide your input.

SAP PI version : 7.4 single stack

Regards,

Deepika