Use this command to force PTC ALD to conduct a prescan of a document for table information. The prescan usually happens as a default when PTC ALD is processing Version 2 tables but if a user has specified the number of columns, and their widths, via the version 1 lump style attribute or a <?tbcoln> / <?tbcolw> combination the prescan is skipped to save processing time. As such the prescan will need to be forced.