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I`m a Microsoft Excel MVP (Most Valuable Professional) and have been since the inception of the program in 1995. I can answer every kind of Excel question except: API, Importing/exporting to other programs (powerpoint, word,...) Also check out my in-person training link at http://www.thumbtack.com/ny/new-york/excel-training/

Experience in the area

Worked with MS Excel since version 0.99 (on the Mac!). Was contributing editor to Excellence Magazine, having written >300 articles. John Walkenbach said of me "I finally met someone who knows as much about Excel as I do."


Excellence, The Expert, Microsoft


BA in math, Hofstra University, 1965

Awards and Honors

Led sessions for the Convergence 2004-2006 seminar on Excel tips & tricks

What do you still hope to achieve/learn in this field?


Something interesting about this subject that others may not know:

See my book, This isn't Excel, it's Magic! at http://www.iil.com/iil/excelmagic

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
CHRIS03/29/17101010Thanks, Bob, for your prompt,clear, reply .....
Nicholas03/22/17101010Thanks. Exactly what I am needing..
Alan03/15/17101010Bob showed me the merits of non .....
Alan03/14/17101010you have put me on the right .....

Recent Answers from Bob Umlas

2017-04-06 Password Protecting:

How do you know who's looking at the workbook? How would you know if Tom is looking at the Tom sheet so it'd be unprotected but if he looks at the Chris sheet it's protected? Is the worksheet name the

2017-03-28 bar charts:

OK, follow these steps.   For starters, put volumes in the first column & year 2nd. Precede EACH volume entry with an x, so your data would look something like this:  Volume  Year  X1000    1995  X2000

2017-03-25 error:

You have this on one line, and should be 2.         oTargetBook.Worksheets("Sheet1").Pastespecial xlpastevalues oTargetBook.Worksheets("Sheet1").Range("A2")    However, if you really have it in separate

2017-03-10 check date format:

"...time format hh:mm or not blank..."  That would be anything that's not blank! So "XXX" would be true, 123.45 would be true, and any non-blank would be true. If you really mean you want to stop when

2017-03-09 Copy range to another sheet:

ColumnToRepeat is a range object. saying Range(columnToRepeat) is like saying Range(range(...))/  Since the syntax for a range is something $A$3:$C$3, you need the ADDRESS, not the range object.  Try this:


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About Excel
This topic answers questions related to Microsoft Excel spreadsheet (or workbook) stand-alone or Mircrosoft Office Excel including Excel 2003, Excel 2007, Office 2000, and Office XP. You can get Excel help on Excel formulas(or functions), Excell macros, charting in Excel, advanced features, and the general use of Excel. This does not provide a general Excel tutorial nor the basics of using a spreadsheet. It provides specific answers to using Microsoft Excel only. If you do not see your Excel question answered in this area then please ask an Excel question here


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