Yes. CSV with the obvious extra conditions "UTF-8" and "one header row" is fairly interoperable, but note: "when you’re using Excel for Windows to load a file t

Yes. CSV with the obvious extra conditions "UTF-8" and "one header row" is fairly interoperable, but note: "when you’re using Excel for Windows to load a file that is UTF-8 without a BOM, you can resolve the display of non-ASCII characters by using the ‘import text’ option". If a Windows user just clicks on the file then sometimes UTF-8 is interpreted as some 8-bit encoding and you get mojibake. Nevertheless, you shouldn't add a BOM because the standard doesn't permit that and it might cause all sorts of problems on other systems.