It is still not clear, so let me help.

While in QUICKBOOK PAYROLL online.  BE SURE YOU ARE NOT IN SAFARI, BUT ARE USING CHROME!!!!!

CHOOSE THE PAYROLL TAB ON THE LEFT

NOW CHOOSE EMPLOYEE TAB CENTER ABOVE.

UNDER THE GIANT GREEN BUBBLE ON THE RIGHT SIDE YOU WILL SEE:

     "Next Payroll Due..." in black

     "Paycheck List" in BLUE

CLICK ON   "Paycheck List" in blue

NOW CHECK THE BOXES ON THE LEFT FOR THE PAYCHECK YOU WANT TO EXPORT TO MAC

ONCE CHECKED YOU WILL SEE A SECOND BOX NEXT TO PRINT "Export to accounting"

click this button.

these will now download to your download fold on your Mac.  double click and follow all the rest of the instructions that come up.   Voila  you have done it.

Yes, this is not logical.   Remember how in Intuit you would click on "Paycheck History" in the Report area to do this.  That's right kiddos - nope that doesn't work.  This Intuit QB Payroll online is a disaster.  Yuk! Boo! Shame!