How do I delete all text between square brackets (including the square brackets) in calc cells throughout the document?
With find & replace (Ctrl+H),
in find: \[.*\]
in replace (nothing):
mark regular expressions,
Replace all.
edited: is needed \\ to show a \ here.
Right Whalley, I copy form LIbreOffice the expressión, and the esc \ are not showed.
You can also use 4+ spaces to indent lines, which then gives syntax-highlighting (not so important in this case), monospace font, and (in most cases) no need to escape characters:
\[.*\]