In the first column I used the Formula : =IFERROR(INDEX(cda, SMALL(IF(FREQUENCY(IF(cda<>"", MATCH(ROW(cda), ROW(cda)), ""), MATCH(ROW(cda), ROW(cda)))>0, MATCH(ROW(cda), ROW(cda)), ""), ROW(I7)), COLUMN(I7)), "")

and in the second coulm : =(workday(cell,1)