Hi Ravi,
>>>>Here my doubt is how we will place the file in the server and how it pick up ??
If sender is FTP server you can connect via FTP client like FileZilla and drop the file, even SAP systems also you can connect via FTP if the FTP service enabled in the server.
>>>>And what is the mandatory File content conversion for file sender , and it is necessary to have FCC for File to IDOC .??
If the file already in XML format then you no need to do FCC, if the file is text file then you need to do the FCC in sender channel.
Regards,
Praveen.