Copy wrapped any cell that held a double quote in quotes (and doubled
its quotes), so copying `say "hi"` into another app gave
`"say ""hi"""`. Excel quotes only text with a tab or line break; a cell
with just quotes goes on the clipboard as it is.
Pasting text read a field that starts with a quote as quoted even when
its closing quote doesn't end the field, so `"hi" there` (which Excel
copies as it is) pasted as `hi there`. A field is now quoted only when
its closing quote is followed by a tab, a line end or the end of the
text; otherwise it is the text as written, as Excel pastes it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>