https://bugs.documentfoundation.org/show_bug.cgi?id=93371
--- Comment #7 from Eike Rathke <er...@redhat.com> --- The mix of English and German (of AddIn functions) names in the UI with "English function names" was solved for bug 135993. The problem of storing those Date AddIn names in German if a German UI is used isn't satisfiable solvable for binary .xls 97-2003 (unless we implement some workarounds and handle functions individually) because Excel itself stored the Analysis pack functions language dependent depending on the localized UI of Excel (you might also notice that not all stored German function names are identical to the German UI names, like UMWANDELN vs UMRECHNEN (English CONVERT)), but those old versions apparently did not know a few date functions that are offered as Date AddIn functions by LibreOffice. There is only one proper remedy: do not save as .xls in such constellation (German UI and Date AddIn functions used). Save as the more up-to-date OOXML .xlsx Excel 2007-365 file format instead and everything is fine. -- You are receiving this mail because: You are the assignee for the bug.