In Microsoft Word, this is very easy. You just need to open “Find and Replace”, enable Wildcards and replace ^13 (paragraph break) with ^l (line break).

But this is a little different in LibreOffice Writer. But you do not require any macro for this. Just follow this process.

• First of all, type a line break by pressing “Shift” + “Enter”
• Now copy this line break
• Now open “Find and Replace” (You can use the shortcut “ctrl” + “H” to open “Find and Replace” dialogue box)
• Click on checkbox for Regular Expressions
• Type “$” in the find box to search for paragraph break
• Click on “Find All”. This will cause all the paragraph breaks in the document to get selected
• Close the “Find and Replace” box without removing the selection
• Press “ctrl” + “V” and it will paste line break in place of all the paragraph breaks

That’s it.