The Autofill functionality in Calc and similar spreadsheet software enables users to automatically populate a series of values.
For instance, entering "1" and "2" into adjacent cells and then utilizing the fill handle will cause Calc to extend the sequence as "3", "4", and subsequent numbers.
Autofill streamlines data entry by eliminating the manual input of repetitive information.
Features such as Alignment, Formation, or Column Width do not offer this automated series completion.
Alignment pertains to content placement within cells, Formation is not a recognized spreadsheet feature, and Column Width solely dictates the column's dimension.
Therefore, Autofill accurately describes this specific function.