how do i share files between pc's?

See the articles Set up and use iCloud for Windows - Apple Support

Share files and folders in iCloud Drive on iCloud.com - Apple Support

Share iCloud Drive files and folders in iCloud for Windows - Apple Support

Yes. you can access your files through iCloud.com or using the iCloud windows app.

Of course. Either at iCloud.com or by setting up iCloud for Windows on each device.

Papajimmc Said:

"how do i share files between pc's?: Can I access my icloud files from multiple PC's?"

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What happens when you try? Any errors?