Save as document in MS Word
If you want to share your document with people who use software other than Microsoft Word 2010 or Microsoft Office Word 2007, or if you plan to open the document on another computer, you need to choose how and where you want to save the document.
NOTE: If you commonly save documents in a particular place or format, you can adjust settings so that Word defaults to these choices.
IMPORTANT: If you intend to share the document with other readers, click the File tab, click Check for Issues next to Prepare for Sharing, and then click Inspect Document before you save the document. The Inspect Document option provides commands that enhance the privacy, security, and authenticity of your document.
The Video has been made by me and the text is from a Microsoft Blog