How can I sort the following data using Excel?: I need the primary sort to be (cell A)



A B C D E
================================================== ==========
John Brian 1233 444 55 555
555 566 1 100
total 56 655
================================================== ===========
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Sam Simon 1233 444 21 555
555 566 1 200
total 22 755
================================================== ===========
================================================== ==========
Cathy sherman 1233 444 44 500
555 566 1 50
total 45 550
================================================== ===========

Please help.
Thank you in advance