Combine 2 sheets

Hi my friends
nothing goes bad, all things are okay.
I have two workbooks, one is called analysis3 and another is grade33.
I need all sheets from workbook grade33 to shift into work book called analysis3 except the sheet named main sheet with its formulars to work.
And i have a challenge i tried to doing it but in sheet named best students it give 0 results i don?t know what is wrong.
I need to find average in r267 and r268 you will see comments of what i wanted also in workbook called analysis
and to correct formula in sheet called grade33 in sheet best 5 and weak students
i need somebody to help me
see the attachment