Column formats

Column of certain types can have formats applied to their data. All data in the column will automatically be displayed in the chosen format, but formats do not change the data itself.
That is, if you type "7.99" into a column with a format that does not allow decimals, it will display "8". However, if you subsequently change the format of the column to one that does allow decimals, it will display the value you entered, "7.99".
To set the format of a column, select the column and use the Column Type inspector. The column must be of a type that allows formatting.
Number formats
Date formats