Using AutoFill with a gap in the data

On an otherwise empty worksheet, you have the following range (not an Excel Table) in column A, where there is a gap in row 5. You want to auto-fill a sequence of numbers starting from 1 in cell B2. You enter 1 in cell B2 and 2 in cell B3. You then select both cells and double-click the fill handle to auto-fill down the column.

Inspect the gap in column A of Table 1 before predicting how far AutoFill will continue.

Table 1: Initial data.
A B
1 Data Sequence
2 Alice Johnson 1
3 Bob Smith 2
4 Charlie Rogers
5
6 Diana Stone
TipAutoFill in Excel

AutoFill fills cells with a series based on the pattern in the selected cells.

When you point to the fill handle (a small square at the bottom-right corner of a cell), the cursor changes to a black cross. Double-clicking the fill handle will auto-fill the cells based on the pattern detected.

What values will be filled in cells B4 to B6 when you double-click the fill handle?

  • 1, 1, 1
  • 3, 4, 5
  • 1, 2, 1
  • 3, blank, blank