How to Generate a List of All Possible 4 Digit Combinations in Excel

Creating a list of all possible 4-digit combinations can be useful in various scenarios, such as generating pin codes or testing algorithms. Excel can handle this task effortlessly. Let's break it down:

Step 1: Prepare Your Spreadsheet

In cell A1, enter the number 0. This will be the starting point for your list of 4-digit combinations.

Step 2: Use the Fill Handle

Click on cell A1 to select it. You'll notice a small square, the fill handle, in the bottom right corner of the selected cell. Click and drag this fill handle down the column until you reach the number 9999. Excel will automatically fill in the numbers from 0 to 9999.

Step 3: Format Cells as Text

Next, you'll need to format these cells as text to preserve leading zeros in your 4-digit combinations. Select all cells from A1 to A10000. Right-click the selection, and then click Format Cells. In the dialog box that appears, select Text under 'Category'. Then click OK.

Step 4: Add Leading Zeros

Now, use the TEXT function to add leading zeros to numbers that are less than 1000. In cell B1, enter the formula =TEXT(A1, "0000").

Step 5: Apply Formula to All Cells

Finally, click on the bottom right corner of cell B1 (the fill handle again) and drag it down to apply the formula to all cells.

You now have a list of all possible 4-digit combinations, from 0000 to 9999.