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Sharing documents: https://support.microsoft.com/en-us/office/share-sharepoint-files-or-folders-1fe37332-0f9a-4719-970e-d2578da4941c
See who a SharePoint file is shared with: https://support.microsoft.com/en-us/office/see-who-a-file-is-shared-with-in-onedrive-or-sharepoint-51bb79a9-b696-410d-a7a7-c320e541272d
Stop sharing SharePoint files or folders, or change permissions - https://support.microsoft.com/en-us/office/stop-sharing-onedrive-or-sharepoint-files-or-folders-or-change-permissions-0a36470f-d7fe-40a0-bd74-0ac6c1e13323
Custom views
Settings custom views will provide your end-user with a better experience. SharePoint’s default views usually display a lot of additional information which may not be relevant to your users. Learning to control what is displayed will reduce clutter, and save time. Please see the following:
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