…/LibreOffice/help/en-US/text/scalc/guide/ numbers_text.html?DbPAR=CALC#bm_id3145068 says ‘The century code CC may not be omitted.’ False. ‘19-2-8’ converts nicely to ‘2019-02-08’ Version: 6.4.0.1 (x64) Build ID: 1b6477b31f0334bd8620a96f0aeeb449b587be9f Threads CPU : 4; OS : Windows 10.0 Build 18362; UI Render : par défaut; VCL: win; Locale : en-US (en_US); Langue IHM : fr-FR Calc: threaded
Not in that context. The help portion https://help.libreoffice.org/latest/en-US/text/scalc/guide/numbers_text.html talks about cell content of type Text that is to be converted to type Numeric|Date during calculations. This is *not* about input being accepted as numeric when creating cell content.