Answer:
Number formatting using data validation.
Step-by-step explanation:
Spreadsheet applications are important analysis tools that requires little or no programming in data analytics. It columns and rows hold the fields and records of a range of data input.
Data validation is used in spreadsheets to specify the data type that is allowed in a column. To use or be able to input only number formats on a column, go to the data tab, click on data validation, select numbers. In the number option, there are various formats, they are, date, currency, time, negative and positive numbers etc, which can be selected to format the column.