Spreadsheet has a column that shows two months to bill a lease. 1/7 means bill in January and July. 2/8 means bill in February and August; etc. The cell looks like 1/7; but it's being read as a date; 1/7/1994. So when I sort by this column I don't get all of my 1/7 together. How to change to text without it calculating the cell to some long 6 digit number.