In order to convert text from lower to upper or vice-versa in Notepad++, try the following steps,
- Open your text file in Notepad++
- Select the text from the file you want to convert (or Ctrl+A if you want to change case for the whole file).
- Now go to Menu -> Edit -> Convert to case
- Here you can select Upper/lower option.
- Based on what you select you would see the text being changed.
Note: You can also use Keyboard shortcuts - Ctrl + Shift + U for UPPERCASE or Ctrl + U for lowercase conversion.

This is not an AI-generated article but is demonstrated by a human.
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