Steps to Share a File or Folder with External Guests in OneDrive

1 - Open OneDrive in your browser or desktop app.

Note: this example is the web browser.

2 - Select My files.

3 - Find the file or folder you want to share and click the three dots on it or select it, then click Share.

4 - Click Links Settings.

5 - In the Share window, click the Anyone option.

6 - Select the drop down arrow to give the external user permissions.

7 - Click Apply.

8 - Enter the external email address.

9 - Click Send.