You could click the Share button in the upper right corner, then click Send a Copy.
And then please choose one app, such as Outlook as following image.
But please note, before you can send an email, you should set up an email accout in Outlook, then you could enter the address that receive this email, and click Send.
Otherwise, you need to click OK to close the prompt below, go to Outlook > Preferences > Accounts under Personal Settings to add an email account in Outlook.
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