Much of the time, moving a QuickBooks file from Windows to OS X involves using your Windows PC to save the file as QuickBooks for Mac and then moving the file on a flash drive or disk to your Mac.
Sometimes you need to update your copy of QuickBooks on Windows before you can export your file, but that can be done with a free trial version of QuickBooks. If you’re using older versions of QuickBooks for either platform, you may need to get Intuit to convert a file for you.
Because there are lots of versions of QuickBooks for both platforms and different procedures, carefully read QuickBooks own support page on converting a file from Windows to Mac: QuickBooks Support – Converting a company file between QuickBooks for Mac and QuickBooks for Windows.
But QuickBooks on the Mac doesn’t support payroll services from Intuit. So you’ll have to find a third-party provider to run payroll.