I used ST Writer which came bundled with my ST. I still have all my ST Writer files (last modified in 1993!), and quite impressively they open just fine in LibreOffice with formatting and everything preserved (unlike some later .doc files I have).

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p_l 2 hours ago | parent | next [-]

.DOC was never meant to be interoperable, even across Word versions (much), you were supposed to save "final" or "exchange" versions in RTF :)

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klondike_klive 4 hours ago | parent | prev [-]

That is genuinely remarkable! Even indentation?

	▲	m-i-l 5 minutes ago \| parent [-]
		Yes. Just opened some files to check. There was one including a table which I thought at first was a little wonky, but then I realised the column that looked off had currency where I'd right aligned on the decimal point, so even that seems to have been preserved!