Excel/Expert Profile

David W. Cofer

On Vacation
returns 12/30/2017

I can answer MS Excel questions regarding Excel Formulas, Functions, Worksheets, Data Validation, Conditional Formating, Lookup, Pivot Tables and Logic Functions, as well as other general Excel questions. I do not answer questions regarding Charts, Macros, Visual Basic or Programming. Please include the version of Excel you are using. That helps me provide an answer that will work on your system. Also, do not submit duplicate questions to several experts at the same time. If several of us are answering the same question at the same time, it is a waste of time and resources. If the first expert you ask does not provide an acceptable answer, then ask a second expert. As we are volunteers, our time is valuable, and it is a waste of time for 5 of us to be working on the same question at the same time. Thanks for your understanding.

Experience in the area

I have used MS Excel for over 20 years and am familiar with all versions back to 1993. I currently use Excel 2013 and assist those using versions going back to 2000. I use Excel extensively at both work and home.


I hold a B.A. degree in Psychology.

What do you like about this subject?

I enjoy solving problems with MS Excel and creating formulas to solve data issues. It is a pleasure to create an Excel formula that solves a work problem.

This expert accepts donations:      

Average Ratings

Recent Reviews from Users

Read More Comments

    K = Knowledgeability    C = Clarity of Response    P = Politeness
Rey12/14/14101010Very helpful. Got what I needed. Awesome!
Wing09/19/14101010very good
Sandi05/20/13101010thank u sir it solve my problem .....
Donal05/13/13101010Thanks David, I will try that and .....
Ginger12/21/12101010Thanks for answering so quickly. I appreciate .....

Recent Answers from David W. Cofer

2014-12-13 Lookup Function/Excel:

Hello Rey,    Thank you for your question.  Before I can provide you with a specific answer, I need some additional information.      However, since your lookup formula is not returning an exact match

2014-09-22 Conditional formula question:

Hello Cindy,    Thank you for your question.  I believe I can help you with this.    However, I am not for sure if you are wanting something (like "Male" or "Female") placed in an adjacent cell, or, if

2014-09-19 Question:

Hello Wing, Thank you for your question.   We can do both of the things you want to do in Excel.    There are several ways to do them, but I will give the way that seems the simplest to me, not knowing

2014-05-27 Fill column:

Hello Chris,    Thank you for your question.    Assuming you are starting with cell A1, type "1'-0"" in cell A1.    Then place this formula in A2: =(LEFT(A1,FIND("'",A1)-1)+1)&"'-0"""    Copy that formula

2013-05-13 Logical test to return a grade:

Hello Donal,    Thank you for your question.  This is easily accomplished in Excel.    First, you need to decide what to return if the grade is below 60 points. In the answer below, I used the word "Fail


Ask A Question

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


All Answers

Answers by Expert:

Ask Experts


©2016 About.com. All rights reserved.