Ah. On DiscourseMobile, the line wrapped right at the first pair of quotes in SUBSTITUTE ( ), so I couldn’t see the space. @adisc, if you use the code formatting controls shown HERE and HERE, that will help other people read your code.
=CONCAT(MID(SUBSTITUTE(A2;" “;”");{15\16\13\14\11\12\9\10\19\20\17\18};1))
I will try your Excel formula in Excel.