I has run bcp command as below in cmd prompt.
bcp "externalFF.tempsn" out "tempsnxx.txt" -c -q -U"sa" -P"BruderX4$",
however it return with error msg as below, I had run this at CMD windows in the server that run the database engine.
SQLState = S0002, NativeError = 208
Error = [Microsoft][ODBC SQL Server Driver][SQL Server]Invalid object name 'externalFF