Help generate certificate for my Windows program installers (kaslaansoft.com)

Hi there,

I own a website where I publish Windows desktop applications. I need a guide how I can create .pfx certificate, where I could add all my company details and secure with a password. And use that single certificate file to sign all my .exe and .msix installers, whenever I need.

Please contact if you've experience in it.

Note: I use Python programming language writing my applications.