mso line spacing and other mso Q’s

Ok,
Im unsorting some code that was written prior to me taking over this job, and well what does mso-line-spacing, mso-margin-left-alt, mso-char-wrap, mso-kinsoku-overflow mean?

Dreamweaver doesnt know what it is either and well thats about my logic, if dreamweaver doesnt know then neither do i... anyone have any suggestions?

The code makes it non 508 compliant and well the site requires that... so i have to change the code

so when i delete it, it deletes the table so i take it i need to create a "true" table and then get rid of it? Dreamweaver is freaking out about it though, making it with the red squiggly lines, im assuming this page was written in frontpage, the person who did this before had very little know how... so the microsoft comment makes quite a bit of sense 

werd thanks for the help im going to attempt to unscrew this ill let you know the outcome