Hello, dear, I'm glad to answer your questions. Dear Sichuan Electronic Taxation Bureau, how to download the ukey version of the electronic invoice for you to find 1. Open the website of the local tax bureau on the computer and click the electronic tax bureau to enter. 2. Click the download button in the upper right corner of the page that appears to enter. 3. After the page jumps, find the comprehensive service platform-UKEY tax digital certificate driver, and click Enter. 4. Click on the file to download in the download page that appears. I hope this service can help you, you can click on my avatar to follow me, and it is convenient to consult me again if you have any questions later. I look forward to serving you again. I wish you; Have a happy life and everything goes well [warm] [warm]