Remove extra space and replace with Tab

[afshin]

Hello.

I have a document that has more than one space (two spaces or more) between some words.
I want these extra spaces to be removed and Then replaced with the Tab key.
I know I have to do this with Regulae expression, but I don’t know how.
For example (This screenshot)

[karolus]

→→Search replace:
search for <space><space>+ ( literally 2 times spacebar and a + )
replace with: \t
[x]regular Expression
→→→ replace all