How to remove blank/unnecessary lines in dreamweaver?

This type of issue mostly face when you can download any file from FTP/server, because its Fille Zilla setting issue,

That's why in any .php file lost of blank/unnecessary lines you can see in file when open that file in Dreamweaver,

Here's a helpful solution to remove blank/unnecessary line from file using Dreamweaver:

Step 1: Click CTRL + F

Step 2: Select 'Current Document' from Find In options (if you want replace in all files then select specific folder)

Step 3: checked 'Use regular expression' from footer options

Step 4: Type [\r\n]{2,} in 'Find' text-area

Step 5: Type \n in 'Replace' text-area

Step 6: And press Replace All' button from right side

Enjoy!