Today I met a student who had written her appellate brief using Microsoft Word on a MacBook. The document looked perfect on the MacBook screen, but when she tried to open the document using one of the pcs in the lab, some of the formatting in the document (fonts, tabs, etc.) changed.
The solution to this probem was to use her MacBook to save the file in PDF format, which preserves the original formatting of the document, even if you later open the document using a pc. To do this on a MacBook, click on File, Print, and then click on the PDF button at the bottom of the print dialog box. Select the option to "save as PDF" and you are done!