Hi!
I'm opening an Excel file with XlsIO and I get this error:
{"_xlfn.TEXTJOIN isn't custom function. at position 1. Formula: _xlfn.TEXTJOIN(\" - \",TRUE,AI8:AI9), Position: 15"}
Formula in Excel is this: =TEXTJOIN(" - ";TRUE;R[1]C:R[8]C)
When I remove the column containing this formula, everything works fine.
Any thoughts?