The easiest way to apply the Heading 1 style is: Apply the Heading 1 style to that paragraph. In your document, click within the first major heading that you want to appear in the Table of Contents. Identify the text that you want to appear in the Table of Contents
Having created your Table of Contents, you can then customize it in several ways, to suit your needs. Second, tell Word to insert the Table of Contents. First, identify the text that you want to appear in the Table of Contents.
In Word 2003 and before: Insert > Reference > Tables and Indexes.