Troubleshooting & messages · Cloud accounts and transfers
Why can't some cloud files be opened on the web from Storage Studio?
Short answer: Some providers, such as OneDrive, don't give Storage Studio a web address for individual files, so they can't be opened in the browser from here. Use the provider's own site.
To open a cloud file in your browser, Storage Studio needs a web address for it from the provider. Some providers — OneDrive, for example — don't hand one out for individual files, so the option isn't available for them.
Open the file in the provider's own website or app instead, or download it to your Mac.