A Master Document created in Word 2007, is a document that is linked to other documents or sub documents. Any changes made in the Master Document is updated in the sub document(s) and visa versa. One main reason some use a Master Document is to keep track of other documents others are working on, and even adding to the content of those documents. To create a Master Document simply create a blank document and from there change views: click View Tab, to Document Views group and click the Outline button. Next in this view find and click the Show Document button in order to insert and manage external sub documents.

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