# Excel/excel for MAC

Question
Hi Stuart,
I have an extensive boat log book (over 1200 daily entries) that I would like to extract data from. I need a formula cell D1 that looks in column A for a month and year, then in column B to find the captain of that trip (Dennis) and then in column C for the total engines hours for that month (formatted in decimals) So in this instance for the month of Aug-1998 with Dennis as Captain it would return (XX.X hours). (e.g.:total hours with Dennis as Captain for Aug-1998)

Thanks,

Dennis

I don't use Excel for Mac, I use Excel 2010 for PC. My advice will probably still work for you.

If you want a formula that totals up the hours in col C, for only those rows in which the col A value is Aug-1998 and the col B value is Dennis, the formula is:

=SUMIFS(C:C,A:A,DATEVALUE("Aug-1998"),B:B,"Dennis")

If this isn't what you're looking for, please ask again, and include in your question a very very clear and simple example, being very very precise about EXACTLY what values are entered into which cells.
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#### Stuart Resnick

##### Expertise

I can answer questions relating to MS Excel formulas, or to programming with vba (Visual Basic for Applications) in the Excel environment. Please follow the following guidelines: your question should focus on one specific issue you want to learn. It's beyond the scope of this free service for me to create entire projects or complex vba solutions for you from scratch. You should be able to do most of the work yourself, and come here when you need help with a specific point you're stuck on. ALWAYS include a simple, concrete example illustrating what you want to learn. Explain this example in detail in the text of your question (what data is in which cells of which sheets, etc). Be very precise about the results you want, using this sample to make the logic clear. Always keep these examples SIMPLE. Never e.g. use 18 worksheets in your example if using 2 or 3 will do. Never use ranges like AI567:BB865 if using a range like A1:B3 will do. Thanks.

##### Experience

As a consultant, I've designed Excel tools since the 90s, working for the Federal Reserve Bank, AT&T, and (currently) Gap Inc.

Education/Credentials
My only "education" comes from 2 decades of doing spreadsheet/programming work, with major SF Bay Area corporations such as AT&T, Federal Reserve Bank, and Gap Inc.