I have been creating several workbooks with formulas and this is the first time I've encountered this. I have a data entry table on one sheet that collects vehicle fleet service records. On two other sheets I have a list of all of the vehicles and column headings with the type of service performed. I have countifs formulas with two criteria counting each time the type of service was performed. The font on the entire sheet has been changed to size 16, however when I add data to the data entry table (Excel Table), the formula cells revert back to size 11. Can anyone explain this?