Keynote users can apply cell formatting on Table using the option provided as part of the Inspector window. The default cell formatting is set to automatic i.e depending on the typed content the formatting is applied.
Let us say you are entering “05” in a cell then Keynote will automatically take this as number and will display the “5” instead of “05”. Now you can fix this problem by
Step 1: Select the Table and click the Inspector window.
Step 2: Click the Format tab in the Table Inspector window.
Step 3: Now choose the value for Cell Format as “Text”
This should display the number preceded with 0 as shown below.