After you specify a header source, you can edit it just as you do the data source. If you have a data source that contains a header record, you can use it as a header source. For example, if you've broken up your data source into several documents, you can specify the field names in the header record of the first data source. When you merge from other data sources that don't have a header record, specify the first data source as the header source. Then specify each of the remaining data sources in turn.
Word ignores the data records from the first data source and uses only the header record.
Graphics for which you have a graphics filter installed. Word can use in the Office Assistant or the Answer Wizard, and then click Search to view the topics returned. For more information about how to install graphics filters and file converters, click Microsoft Word Help on the Help menu, type Install or remove individual components in the Office Assistant or the Answer Wizard, and then click Search to view the topics returned. If the graphics are contained in a data source from a program other than Word, you must convert the file by using a file format converter. To add information other than text or numbers to a data source you created in Word, you must display the data source in a document window.