Base number format

All worksheets have a number format specified as part of their base style. To see this:

Click on the Style button.

Choose BaseSheet from the style list and click Change.

Click the Number button to look at the Number section of the style editor.

In the box marked Number format will appear the base number format of the worksheet:

This is the way in which any numbers entered into number cells will be displayed. In this case, all numbers will appear with a decimal point and two decimal places; thousands will have a comma separator.

You should not change the number style in the base sheet style, but create new styles for each type of number format you want to use in your worksheet.