I doubt you're using "hidden" tables to format your resume - just borderless tables. Any document parser worth the name should be able to parse tables. Sure you can use tabs to produce a tabular layout, but that is far harder to parse than a table! After all, a table can have multiple rows of text in a since cell; you can only simulate that with a tabular layout by having line-breaks and extra tabs that break up the text flow to the point it becomes a real challenge to parse correctly.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]