Sorry, we cannot help you without seeing the log files.
As per the Company norms we are not suppose to send any log files. Pls suggest how to go about. This is only pertaining to .dat files only.
So please attach a complete session log file from both WinSCP and FileZilla. Use a real FileZilla log file, not the message log from GUI.
The Files get display's in FileZilla. We have checked the same in both the softwares.
Do they display in any other FTP client?
I would like to know if Winscp supports .dat file Extentions. Presently the files are not getting displayed in FTP site.