How to autofill alpha characters in Excel?
Excel’s Auto Fill handle is a useful tool for us to auto fill sequential numbers, dates and so on. But, if you need to create alpha characters list, such as A, B, C…X, Y, Z, the Fill handle will not help you. In this article, I will talk about some tricks for you to solve this task.
Autofill alpha characters in Excel with creating a custom list
Autofill alpha characters in Excel with formula
Autofill alpha characters in Excel with Kutools for Excel
Autofill alpha characters in Excel with creating a custom list
Creating a custom list of the alpha characters, you can use the alphabetic list time and time again whenever you want to auto fill them. You can do as follows:
1. First, you need to type the 26 letters in a column of a worksheet manually.
2. Then click File > Options, in the popped out Excel Options dialog, click Advanced option in the left pane, and scroll down to find Edit Custom List button in the right panel, and then click it. See screenshot:
3. In the Options box, click 
button to select the alphabetic list you have created in step1, see screenshot:
4. Then click Import button to add this list into the Custom lists box, see screenshot:
5. Click OK > OK to close the dialogs, and now when you insert A into one cell, and drag the fill handle to the cells, the alpha characters will be filled with the order from A to Z automatically.
Autofill alpha characters in Excel with formula
You can also create a formula to auto fill alphabet into cells, please do as this:
1. In a blank cell which you want to place the alphabet, enter this formula: =CHAR(ROW(A65)), see screenshot:
2. And then drag the fill handle over to the range (in vertical range only) that you want to insert the letters, and the alphabet list which from A to Z has been filled into the cells.
Note: As the filled alphabets are formulas, you need to copy and paste them as values to any other ranges.
Autofill alpha characters in Excel with Kutools for Excel
If you have installed Kutools for Excel, its Fill Custom Lists also can do you a favor, you can deal with this task by follows:
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1. Click Kutools > Insert Tools > Fill Custom Lists, see screenshot:
2. In the Fill Custom Lists dialog box, click Edit List button to open the Custom Lists dialog. See screenshot:
3. Then in the popped out Custom Lists dialog box, click NEW LIST in the Custom lists box, and then enter the 26 letters one by one which needed to be separated by comma or Enter button as you need into the List entries box, then click Add button to add theses alphabets to the Custom lists. See screenshot:
4. And then click OK to return to the former dialog box, close it. And now, when you enter A into a cell and drag the fill handle, all the alphabets will be filled into the cells.
Note: With this Fill Custom Lists feature, you can also fill the letters into a range vertically or horizontally.
Click to know more about this Fill Custom Lists feature.
Related article:
How to create and fill new custom lists quickly in Excel?
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