When working with large data sets in Excel, you may want to hide or suppress zero values in your PivotTable to make it easier to read and analyze. There are a few different ways to do this:

1. You can use the Field Settings option in the PivotTable Tools menu to change the Number Format for the field. This will hide zero values by default.
2. You can also use the Filter options in the PivotTable Tools menu to filter out zero values.
3. If you want to hide zero values only temporarily, you can use the Hide option under PivotTable Tools > Options. This will hide all zeros in the PivotTable, but won't affect the underlying data.