TablesOfContents.Format (Word)

Returns or sets the formatting for the tables of contents in the specified document.

Possible Values are wdTOCClassic - Classic formatting, wdTOCDistinctive - Distinctive formatting, wdTOCFancy - Fancy formatting, wdTOCFormal - Formal formatting, wdTOCModern - Modern formatting, wdTOCSimple - Simple formatting, wdTOCTemplate - Template formatting.
Documents("Report.doc").TablesOfContents.Format = wdTOCClassic