1 Invalid data file name for DNS zone.

2 Data design with valid, invalid data to cover normal processing operations adequately can be prepared.

3 An application - defined callback gave invalid data when called.

4 Cannot paste the copied data due to data type mismatches or invalid data.

5 With data validation, you can be assured that there are no invalid data inside your spreadsheet.

6 Regular use of computer makes the registry fragmented and cluttered with obsolete and invalid data.