Place a command button on your worksheet and add the following code lines:
Dim i As Integer
i = 1
Do Until i > 6
Cells(i, 1).Value = 20
i = i + 1
Loop
Result when you click the command button on the sheet:
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Explanation: until i is higher than 6, Excel VBA places the value 20 into the cell at the intersection of row i and column 1 and increments i by 1. As a result, the value 20 will be placed into column A six times (not seven because Excel VBA stops when i equals 7)..