How do I find the last active cell in a range in Office for Mac 2011 on a Macbook without the end key?

I recently started using a macbook pro with Office for Mac 2011.  How do I find the last active cell in a range without the end key?  I have searched the net and tried combinations of fn, command, shift and arrow keys to no avail!  I have workbooks where I have data sheets containing thousands of lines of data which feed pivot tables.  When I update the data I need to change the range of the source data for the pivot tables and it takes entirely to long to grab the data manually with the mouse.
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Eoin OSullivanConsultantCommented:
I don't have a laptop to test these but have you tried ..

ctrl+fn+left arrow for HOME and ctrl+fn+right arrow for END

These work on my Excel on my Mac keyboard

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MorefieldITAuthor Commented:
I still have an issue but I think it has to do with excel thinking deleted cells are still active.
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