building flat files in unix and importing them from windows

what is a flat file in unix?
i have to import a unix flat files from windows based programme.
my question is not to export from unix but only to import from windows only.
how to build that flat files?
how to create export to windows
how to import from windows

The easiest way to import the file to windows is to ftp to the unix box and 'get' the file.

A flat file is just another name for a plain data file -- meaning that it does not have an imbedded index, fro example.

One thing to keep in mind. Windows machines use a CR/LF as a line terminator for character files. Unix machines use LF. The good news is that there are easy ways to translate the files when you transfer them. For example, if you FTP between a windows and Unix machine, the keyword "ASCII" will trigger the conversion. if you were on a windows machine and were transfering to a unix machine at IP address 123.456.789.012, you would issue the following commands in the ftp utility to transfer a file to the \junk\download directory on the unix machine

ftp
open 123.456.789.012
cd \junk\download
ascii
put thefile.txt
bye