How to make a plain text file

If I copy and paste formatted text into a LO text document, how do I strip the formatting? I do not see a “save as plain text” option. Thank you.

There are a number of ways “to strip the formatting”, “save as plain text” is just one of them. And in that regard, your question is ambiguous: do you intend to save file as plain text (.txt) - as your question’s title implies; or do you want to strip formatting (but not necessarily save as plain text format) - as wording of the question body suggests.

To strip formatting when pasting, you just use “paste as Unformatted text” (use Paste button’s drop-down for that, or use Ctrl+Alt+Shift+V in recent versions).

To strip formatting from already inserted text, select it and use Format-Clear Direct Formatting (Ctrl+M).

To save as plain text, just select File type Text (*.txt) in Save As dialog (that’s the “save as plain text” option that you didn’t see).

On my machine the hotkey is Ctrl+Shift+V.