The Autofill feature in Calc (and other spreadsheet applications) helps users automatically complete a sequence of values.
For example, when you type “1” and “2” in cells and drag the fill handle, Calc extends the series as “3”, “4”, and so on.
Autofill saves time by reducing the need to type repetitive data manually.
Options like Alignment, Formation, or Column Width do not provide this automatic series-filling function.
Alignment adjusts the positioning of content in a cell, Formation is not a standard feature, and Column Width only changes the size of the column.
Hence, Autofill is the right answer for this function.