Created attachment 127103 [details] file with case showing calculation error It seems that when the last computed workday coincides with a holiday, WORKDAYS.INTL seems to ignore it. The file attached has this situation Start date: 8/31/2016 Number of days : 5 Holliday: 9/7/2016 Calculated value: 9/7/2016 Expected value: 9/8/2016
Upon a closer look, this is the same issue as bug 101541. *** This bug has been marked as a duplicate of bug 101541 ***