Advanced Sumproduct Queries

How often have you had a simple table where you want to lookup a value or add up some values meeting a criteria?

This post looks at a simple way to do a 2D Lookup or 2D Sum of a values from within a 2D range with multiple criteria, without complex Sum, Offset, Index, Match, Sumifs or other functions, simply using Sumproduct

Using Array Formulas to check if a list is sorted.

Today, we will learn an interesting array formula trick to test if a list is sorted or not. During last one week, I got 2 requests from different clients for some excel related work. Both of them had one thing in common. To test whether a list is sorted or not. So I got thinking, […]

Find-out Days Overlaped [Excel Formula Homework]

Few days back we have learned how to find if 2 sets of dates overlap using Excel Formulas. For eg. we have learned that to check whether {1 July,2010 to 23 July 2010} overlaps with the date range {15 July, 2010 to 16 August 2010}, we can use a formula like, =if(or(and(x>=a,x<=b),and(a>=x,a<=y)), “Overlap”,”Do not overlap”) […]

Between Formula in Excel [Quick Tips]

Checking if a value falls between 2 other values is fairly common when you are working with data. In today’s quick tip, we are going to learn how to check for such between conditions in excel. You will be learning how to check if a value, date or text falls between 2 other values, dates or texts (when arranged in dictionary order) as shown in the picture aside.

Check if two ranges of dates overlap [Excel Formulas]

While preparing a project plan, I had a strange problem. I wanted to highlight all the project tasks that fall with-in a certain date range. At the lowest level, the problem is like this: There are 2 ranges of dates (a,b) and (x,y) and I want to know if they overlap (ie at least one […]

Writing “Either Or” formula in Excel [Formula Howtos]

We all know the AND, OR & NOT formulas in Excel using which you can perform simple logical operations And, Or & Negate. But what if you are the chief of HR at ACME Company, where they have a strange rule on extra allowance like this: Now, to calculate the dates in a month that […]

Conditionally Formatting Dates in Excel [Part 1 of 2]

This is first part of 2 part series on conditionally formatting dates in excel.

Conditional formatting is a very useful feature in Excel. You can use Conditional formatting to tell excel how to format cells that meet certain conditions. For eg. You can use conditional formatting to show all negative values in a range in red color. Today we will learn how to use conditional formatting to format dates.