Created attachment 36909 [details] bool_missing_params.patch `=AND(TRUE,)` returns TRUE in POI, but FALSE in Excel 2003 and Excel 2013. It seems that Excel treats the missing parameter as FALSE. POI on the other hand ignores the missing parameter. This patch makes POI behave like Excel in this regard. I have added some tests to verify the bahvior.
Created attachment 36910 [details] BooleanFunctionsTestCaseData.xls To be placed in test-data\spreadsheet\BooleanFunctionsTestCaseData.xls
Applied via r1872125, thanks for the patch!