Here are instructions how to sort lines in Notepad++.

1) Start Notepad++

2) Go to Plugins > Plugin Manager > Show Plugin Manager

3) List with available plugins will appear

4) Find and check "TextFx Characters"

5) Click Install

6) Select rows you want to sort

7) Navigate to TextFx > TextFx Tools

8) Check or uncheck "+Sort ascending"

9) Select "Sort lines case sensitive (at column)" or "Sort lines case insensitive (at column)"