Working in Office, you can send the current document as an email attachment.
Office opens your default email program. If you want to send the current document with another email program, you can select the program to use with Internet - Email in the Options dialogue box.
In case you want to send the email to a recipient who only has software that cannot read the OpenDocument format, you can send the current document in an often used proprietary format.
For a text document, choose File - Send - Email as Microsoft Word. For a spreadsheet, choose File - Send - Email as Microsoft Excel. And for a presentation, choose File - Send - Email as Microsoft PowerPoint.
If you want to send the document as a read-only file, choose File - Send - Email as PDF.
These commands do not change your current document. Only a temporary copy is created and sent.