Newb, I need to replace a varible?

[justin reeves]

hello, I use Notepad++ for editing G-Code for CNC milling machines,
I wanted to know if there is a way to replace numerous parameters at the same time , example

Code:
F20.15
F18.23
F26.59
F500.
F30.2
F8.5
F47.8
F500.

So If I needed to replace every parameter from F1.0 to F50.0 with say F45.
Is there any way to do this?
Thank You

[Eric A. Stiles]

Confusing on what you want, but I take it the Find and Replace wont work for this?