Convert Products and options from Volusion to 3dCart

We need to convert about 800 products from Excel file exported from Volusion based shopping cart website, to a format that can be imported to 3Dcart based website. Mostly requires changing column names, and converting Volusion's website categoryID numbers to the actual category names which 3Dcart uses. Also about 13,000 product options need to be converted. About 7 or 8 hours of work based on past experience. Must be familiar with basic formulas in Excel, for mass cell data converting, and experience with Volusion and 3Dcart product database tables a plus!