I don't know of any how-tos, sorry. The way we handled this was simply to tell people to do a save-as. I do seem to recall that OOo has a function to do mass conversions off from its file menu, but we didn't really use that.Are there any good How-Tos on this? Or do any of the StarOffice or OpenOffice.org books[*] cover switching from MSO->OOo?