The code assumes the table the cell widths are to be calculated from is the first table in the document and, as coded, the first cell in that table. As I said, it's generic. If your mailmerge main document has multiple tables, you'd need to specify which table to use; you'd probably also want to code the macro to skip over other tables.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]