Some friends may need to add professional barcodes to some worksheets, and you can use the Microsoft Barcode Control 9.0 controls in Excel to easily insert barcodes according to your needs, as follows:
To perform the view → toolbar → Control toolbox command, click the other controls option in the Pop-up control toolbar, select Microsoft Barcode Control 9.0 in the list of command options that appears, so you can insert a barcode in the worksheet. To modify the number at the bottom of the barcode, right-click the inserted barcode, from the shortcut menu that pops up, select the Properties command, enter the barcode number you want in the value value in the Pop-up Properties Settings dialog box, and then exit after saving the worksheet, and then open the worksheet again to see the modified barcode.
If you often use Excel to make a table, you won't have to look at the article "How to set a double slash header in Excel."