changing the config.xml doesn't work

[Efi Shalom]

is it possible that “notepad++” ignores what is written in the modelconfig.xml file?
I have change in this line: <GUIConfig name=“TabSetting” size=“4” replaceBySpace=“no” /> to replaceBySpace=“yes”
but even after I save the file and open notepad++ again, in the GUI config, when I look at Settings -> Preferences -> Language menu/Tab settings, the box of “replace by space” in unchecked!

why this is happening?

thank you