Sum hours from another sheet in an Excel workbook, match by employee name...?

I have an Excel workbook with three sheets.  SHEET 1 keeps track of each day and the hours for a few employees on that day (each day of the year has a column) for a particular project manager...

so...

               9/1/2013    9/2/2013  9/3/2013

tommy     8                   6                 7
billy         6.5                8                  8
james      5                    4                 4

...and another sheet (SHEET 2) will have the same employees, but they might use them on different days.


               9/1/2013    9/2/2013  9/3/2013

tommy     2                   3                 8
billy         4                  4                 4
james      8                   4.5               2

I have another sheet (TOTALS) that looks the same, but I want the hours to total all hours for that employee for that day for both SHEET 1 and SHEET 2.  So the TOTALS spreadsheet would list all employees and their totals from other sheets.  So TOTALS would check SHEET 1 and SHEET 2 for Tommy and put 9 hours on 9/2/2013.

How do I do this?
Kevin SmithAsked:
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Kevin SmithAuthor Commented:
Okay...I've got the SUMIF function working...

=SUMIF('Robert Morgan'!$F12:$F9194,"Mark James",'Robert Morgan'!H12:H9194)

...how do I do multiple worksheets?
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Rob HensonFinance AnalystCommented:
Simplest would be to duplicate that SUMIF for the second sheet:

=SUMIF('Robert Morgan'!$F12:$F9194,"Mark James",'Robert Morgan'!H12:H9194)+SUMIF('William Morgan'!$F12:$F9194,"Mark James",'William Morgan'!H12:H9194)

Changed name of second sheet to William Morgan as example.

This assumes the columns on both sheets have the same dates. If not we could come up with a combination of INDEX and MATCH formulas.

To be more flexible, you could also change the "Mark James" section to a cell reference containing the name. Remember to lock the column reference as you have with the references to $F12:$F9194

Thanks
Rob H
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Rob HensonFinance AnalystCommented:
Also, I suspect you need to lock the row references in both sections of the SUMIF so that they don't change when you copy down the sheet:

=SUMIF('Robert Morgan'!$F$12:$F$9194,"Mark James",'Robert Morgan'!H$12:H$9194)+SUMIF('William Morgan'!$F$12:$F$9194,"Mark James",'William Morgan'!H$12:H$9194)

Thanks
Rob H
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Rob HensonFinance AnalystCommented:
Would you be averse to a change in format?

By having your grid format as it is, you have 365 columns of dates and however many rows for the number of employees, I will assume 200. Therefore you have 2 lots of 73,000 cells with potential for entry. Each one of those could have a potential for error. Likewise because you have the dates across 365 columns and the employees down 200 rows, excel assumes that all 73,000 of those cells are being used even if they are empty; potentially increasing the size of your file which may or may not be a problem for storage resource and/or recalculation process time.

How about having a database style format. You have 3 columns (possibly 4 - later!) and as many rows of data as you have entries.

The column headers would be:
  Date
  Employee
  Hours
The 4th potential column would be for Department(?) and would be used instead of having two sheets with input.

This style of data would then lend itself perfectly to using a Pivot Table to summarise the data on the TOTALS sheet.

I can be more specific if you so require.

Thanks
Rob H
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Kevin SmithAuthor Commented:
Got me on the right track, thanks!
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