Suppose you have to add a single quote at the begining and end of every row in a file using TextPad. http://www.textpad.com

Original file:
pippo
pluto
paperino

Result file:
'pippo',
'pluto',
'paperino',

Actions

1. Open the file
2. Click F8
3. Text to find: ^.*?$
4. Replace with: '$0',
5. Check the "Regular expressions" check-box
6. Click "Replace All" button.