Required materials: computer, excel.

1. First create a new blank document, as shown in the following figure:

2. Select Insert to enter barcode selection, as shown in the figure below:

3. Use serial number, service number and membership card, as shown in the following figure:

4. Select the coding drop-down arrow. There are seven styles to choose from, as shown in the following figure:

5. Select UPC-A format, as shown in the following figure:

6. Enter the barcode number to be made, and click below to insert, as shown in the figure below:

7. After the production is completed, you can add a border and trim it.

Related introduction

Bar code is a graphic identifier that arranges a number of black bars and blanks with different widths according to certain coding rules to represent a group of information.

Common bar codes are parallel lines composed of black bars (referred to as bars) and white bars (referred to as spaces) with great differences in reflectivity. Barcode can indicate the country of production, manufacturer, commodity name, production date, book classification number, starting and ending place, category and mailing date, and so on, so it has been widely used in many fields such as commodity circulation, book management, postal management, banking system and so on.