can't open icloud files on MacBook (although I can open those files on iPhone)

Hi there, Bob.

I see that you're unable to open document you're syncing through iCloud Drive using your MacBook on macOS 10.15.1, and I'm glad to help.

iCloud Drive FAQ -- This article provides the information and steps that you need to open documents you have in iCloud Drive. Are you able to open the documents if you log into icloud.com/iclouddrive?

Use safe mode to isolate issues with your Mac -- If you're still unable to open documents, restart your Mac in safe mode and see if you can access them. If it works while in safe mode, reboot normally and test again in your own user account.

If this doesn't correct the problem, please describe the issue in greater detail. Please include the full text of any messages you receive. The more information you provide, the better we'll be able to offer additional guidance.

Let me know how that goes, and take care!

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply.        Pastebin

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