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[null,"Simple Timer in Excel"]
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[null,"Timestamp","Duration (minutes)",null,null,null,null,null,"Start"]
[null,"2014-05-13T11:08:02",1.5046296903165057E-4,null,null,null,null,null,{"$f":"COUNTA(durations[Timestamp])","v":5}]
[null,"2014-05-13T11:09:48",3.9236111115314998E-3]
[null,"2014-05-13T11:18:36",4.2592592581058852E-3]
[null,"2014-05-13T13:41:01",5.7870369346346706E-5]
[null,"2014-05-13T13:41:08",4.6296292566694319E-5]