Here are some possible scenarios that could occur when installing the PCX Desktop application.
I receive "How do you want to open this file?" message
If this message is encountered, please install this Microsoft Windows App Installer
NOTE: You may need administrative privileges to run this installation.
Microsoft App Installer (external link): https://apps.microsoft.com/store/detail/app-installer/9NBLGGH4NNS1?hl=en-us&gl=us
After installing this you should be able to open the PCX Desktop ".MSIX" files
I receive a message indicating .NET is required but not installed
You may need to install the .NET 6 Runtime on your PC prior to attempting the installation of PCX Desktop. This is more common for some of our secondary "EXE"-based install builds.
.NET Runtime (external link from Microsoft):