To go from Mac Quicken to Windows QuickBooks, I think you would have to first convert to Windows Quicken. I'm not sure how to convert Mac Quicken into Windows Quicken. Then once you get your data converted to WIndows Quicken you can convert to Windows QuickBooks,Quicken for Windows data can be converted to QuickBooks using the data converter built into the QuickBooks software. QuickBooks has to be the same year or newer than the Quicken version. Quicken to QuickBooks data conversion is a one-way conversion. It is not possible to convert QuickBooks data to Quicken. Once a QuickBooks conversion has been performed on your Quicken data, the data can no longer be opened in Quicken. For this reason you should make a backup of your Quicken data prior to any conversion or perform the conversion on a copy of your Quicken data.
I'm staying on Quicken 2013 Premier for Windows.