The error says you do not have access for some reason.
If its in your own directory/folder in sharepoint/onedrive is this a personal account or business?
Either way can you please do this
1. Go to powerautomate.com and login
2. Select the correct environment
3. In the left side choose More... on the navigation
4. Select Connectors
See if you have a broken Excel connection and if so please fix it.
Then go back into your flow and refresh it, then look at the action, see if your connection (under the ... or in the new experience the popup window on the left) and see if it tells you the connection is broken.
If so fix that, or create a new one.
Otherwise its a purely permission issue which you can validate, by trying to open the location of the file yourself manually through a browser and try to open the file.
If these suggestions help resolve your issue, Please consider Marking the answer as such and also maybe a like.
Thank you!
Sincerely, Michael Gernaey
