Hello, @mohammad-al-maaitah and All,
Very easy !
Open your file in Notepad++
Run the Edit > Character Panel menu option
=> As you can see, the SYN character is a Control C0 character, with decimal value = 22 and hexadecimal value = 16. Thus :
Open the Replace dialog ( Ctrl + H )
Un-check all the box options
Type in \x16 in the Find what : zone
Leave the Replace with: zone EMPTY
Check the Wrap around option
Select the Extended (\n, \r, \t, \0, \x...) or the Regular expression radio button
Click ,once only, on the Replace All button
Voila !
Best Regards,
guy038