Final answer:
When AutoFilter is enabled, small arrows appear next to the column headings in a spreadsheet, allowing for sorting and filtering of the data.
Step-by-step explanation:
When AutoFilter is turned on in a spreadsheet program like Microsoft Excel, small arrows are visible next to the column headings. These arrows indicate that the filter is active, and clicking on them allows you to sort or filter the data in that column based on specific criteria. It lets you view only the rows that meet certain conditions and is a powerful tool for analyzing data. AutoFilter makes it easy to focus on specific subsets of data within a large dataset.