How do I sign a Power BI .pqx file when .pfx files are now no longer available

Preflight Checklist

• I have installed the latest version of Power Query SDK.
• I have checked existing resources, including the common issues and the release notes.
• I have searched for similar issues.

Power Query SDK

0.1.5

Regression From

No response

Platform

All

Architecture

i86

OS Version

No response

VSCode version

1.93

PQSdkTool Path

not relevant

Bug Description

The documentation says to use the MakePQX tool to pack the .mez to a .pqx file and then sign with the .pfx file from a code signing certificate.
But now code signing certificates comes on a memory stick and you can no longer extract the .pfx file.
If I can't sign the .pqx my clients will have to reduce the security setting in Power BI to enable the custom connector I've built

Steps to Reproduce

1. Download the MakePQX tool. 2 Execute the Pack command. 3. Try to get the .pfx file from the code signing certificate

Actual Experience

The documented way to extract a .pfx file no longer seems to work since code signing certificates changed in May 2023

Expected Experience

I expected a way to extract the .pfx file or a way to sign the .pqx file without the .pfx file

Additional Context

This was originally raised as a support call on Microsoft .com as part of my MAPS support. It was directed to the Power BI break and fix team who could not answer the question and instead gave me this link to raise it as an issue.

Start with the linked connector-signing documentation and the Power Query SDK release notes, then inspect the MakePQX Pack command and current signing guidance. Determine whether the documented .pfx workflow is still supported and identify the supported replacement or required documentation update; done means users can follow a verified signing path for .pqx files.