While transferring text file using SFTP from Unix to windows, Remote side endofline issue occurs, they want it to be CRLF. Please help

One option would be converting the file to the Windows/DOS format before transferring it over. To do so, you can use todos.

First, install the tofrodos package. This installs two binaries, todos and fromdos that you can use to convert text files between Unix and DOS formats. To convert a file to DOS, run:

todos /path/to/file

You can pass the -b option to create a backup of the original file before converting. For example, todos -b file.txt would copy the original file to file.txt.bak and the convert file.txt to DOS.