@enam  Looks like you have a bad file filter regex in your listSFTP processor configuration. .*file.*\.xls Above looks for any character for 1 or more characters until is finds the last occurrence of string "file" followed by any character for as many characters until last occurrence of string ".xls".  However, all your filenames start with "file" and have no characters before it. Try modifying your file filter regex by removing the ".*" before "file": file.*\.xls  Right click on processor, select "view state", and then "clear state".  Then start the listSFTP processor again to see if generated NiFi FlowFiles for each file on your SFTP server. If you found any of the suggestions/solutions provided helped you with your issue, please take a moment to login and click "Accept as Solution" on one or more of them that helped. Thank you, Matt ... View more