Hi Eike,
I updated our ODF OpenFormula extensions table https://wiki.documentfoundation.org/Development/ODF_Implementer_Notes#List_of_LibreOffice_OpenFormula_extensions with the new spreadsheet functions for Excel support.
I can't find the page when browsing https://wiki.documentfoundation.org/Development . Probably my fault, but possibly it is missing in the table of contents.
Could you add little details to the 'Code pointer' and maybe 'Notes' columns similar to the other functions? Would be nice.
Will do so, though not all at once. Winfried