Breaking all DDE links?

I’ve got a .odt with hundreds of dde links set to update automatically. I need to regularly save a version of the file without links but with the current content. I could press break link() from Edit → Manage links to external files() individually for each links. Is there a simpler way?

(* = I don’t know the names in English, I’m using a translated version)

I’m using 7.0.4.2.

P.S.
I’ll accept a unix sed script as a solution.