Visualize list of calls in csv file to learn max # of simultaneous calls

I have a csv file with a list of telephone calls, with columns for start time, end time, and duration for 30 days. I need to figure out how calls overlapped, to see what was the highest amount of simultaneous calls, and average amount of simultaneous calls by day, and for the month.

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Prior related question: http:Q_28533850.html
bigbangtechAsked:
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ProfessorJimJamCommented:
here is the file.

see if this is exactly what you are looking for.
ee.xlsb
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aikimarkCommented:
@ProfessorJimJam

Where did you get the workbook?  Is there a prior related question that we should know about?
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ProfessorJimJamCommented:
@aikimark

i recalled a similar question that Glenn and I, we have provided solution in month of October

the reference link is here http://www.experts-exchange.com/Software/Office_Productivity/Q_28533850.html
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bigbangtechAuthor Commented:
I will review the excel sheet and get back next week.
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Martin LissOlder than dirtCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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