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Post Category → Challenges

Robert Gascon’s Shortest Formula Challenge

posted in Challenges, Formula or VBA on October 14, 2020 by Kevin Lehrbass 8 Comments

Robert Gascon not only created a shortest formula challenge but he also challenged me to write a post about it! Continue reading →

Old School Helper Columns

posted in Auditing, Challenges on March 6, 2020 by Kevin Lehrbass 0 Comments

For Mr Excel’s recent challenge I decided to go with an old school formula helper column solution. Why? I’ll explain. Continue reading →

Kevin’s Formula Challenge

posted in Challenges on February 9, 2020 by Kevin Lehrbass 9 Comments

My friend Robert Gascon was thinking about Excel formula challenges and Kentucky Fried Chicken (he loves KFC) while drinking a beer. Continue reading →

Power Query Challenge – What Did They Order from the Menu?

posted in Challenges on January 25, 2020 by Kevin Lehrbass 0 Comments

Alan Murray (Computergaga) had an interesting challenge on YouTube. It’s a classic case of “Analyze my awkward dataset!”. He solved it using Power Query. Can it be solved using formulas? Continue reading →

mmult function

posted in Challenges, Efficiency on December 2, 2019 by Kevin Lehrbass 2 Comments

MMULT function is incredibly powerful and yet mysterious to most. Let’s explore this complex function (this post inspired by a formula challenge from contextures.com )

Continue reading →

How many unique List 1 names found in List 2?

posted in Challenges, Formulas, Get & Transform on May 29, 2019 by Kevin Lehrbass 3 Comments

Imagine two lists of names. We have three questions: (1)how many unique names in List 1? (2)how many unique names in List 2? (3)how many unique names from List 1 are found in List 2?  Continue reading →

Extract Largest Number (Power Query & Flash Fill solutions)

posted in Challenges, Get & Transform on March 26, 2019 by Kevin Lehrbass 8 Comments

In a recent post I audited my colleague’s amazing array formula. It extracted the largest number from as420lkjs09nsdk2324lkjsd099 See other solutions suggested by YouTube viewers! Continue reading →

unstacking-data-with-chandeep/

posted in Challenges on March 21, 2019 by Kevin Lehrbass 0 Comments

I saw Chandeep’s Data Cleanup Challenge and it looked like fun. Others solved it using Power Query (some amazing solutions) but I used good ol’ fashioned formulas! Continue reading →

Look for keywords inside of a column of text values

posted in Challenges on November 22, 2017 by Kevin Lehrbass 0 Comments

On October 17 we celebrated spreadsheet day. It was a day full of excitement around the globe! Crowds gathered around spreadsheets…dancing and drinking occurred into the wee hours of the morning. Part of the celebration included a lookup formula challenge from Debra Dalgleish (spreadsheet day creator). Continue reading →