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Random Selection! Part 1
Posted in
  • Aggregation & Summarization
  • Excel Challenges
  • Omid Challenges
  • Power Query Challenges
  • ⭐️⭐️ Easy

Random Selection! Part 1

Challenge No. 93: Randomly select a staff member from each department.
Solved using:Excel (FILTER, HSTACK, INDEX), Google Sheets, Power Query (Table.Group), Python, Python in Excel, and R.

May 5, 2025May 3, 2025
Count Prime Numbers in Range
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Count Prime Numbers in Range

Challenge No. 58: Count prime numbers between given Lower and Upper Limits.
Solved using: Python in Excel.

May 5, 2025May 3, 2025
Consecutive Dates Task Grouping
Posted in
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Consecutive Dates Task Grouping

Challenge No. 17: (Excel formulas also welcome)
Generate the output table.
Solved using: Power Query.

May 5, 2025July 30, 2025
Unique Animals by Column
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️ Intermediate

Unique Animals by Column

Challenge No. 57: Provide a formula to generate the list of unique animals from columns taking one column at a time who don’t appear in any other column.
Solved using: Python in Excel.

May 5, 2025May 3, 2025
List 2nd and 4th Saturdays
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️ Intermediate

List 2nd and 4th Saturdays

Challenge No. 56: Provide a formula to generate the list of 2nd and 4th Saturdays for a given quarter and year in A1.
Solved using: Power Query.

May 4, 2025May 3, 2025
Split, Multiply and  Sum a Text String 
Posted in
  • Crispo Challenges
  • ⭐️⭐️⭐️ Intermediate

Split, Multiply and  Sum a Text String 

Challenge No. 12: Calculate total sales
Strictly Legacy array function
Abdallah Ally Bhavya Gupta Richard Nero.
Solved using: Power Query.

May 4, 2025April 29, 2025
Reverse Lookup
Posted in
  • Crispo Challenges
  • Date & Time Handling
  • ⭐️⭐️⭐️⭐️ Advanced

Reverse Lookup

Challenge No. 9: Reverse Lookup of all the scheduled jobs, Dates and Time
Strictly Legacy Array Functions or PowerQuery.
Solved using: Python.

May 4, 2025April 29, 2025
Generate Logical Grid Pattern
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Generate Logical Grid Pattern

Challenge No. 55: Provide a formula to generate the given grid.
Solved using: Power Query.

May 4, 2025May 3, 2025
Missing Values! Part 3
Posted in
  • Excel Challenges
  • Missing Values
  • Omid Challenges
  • Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Missing Values! Part 3

Challenge No. 92: In the question table, some cells (highlighted) are missing, but a character determines how to fill them based on the following rule:
R = right cell
L = left cell
U = upper cell
D = down cell.
Solved using:Excel (IF, IFS, INDEX), Power Query (List.PositionOf, List.Transform), Python, Python in Excel, and R.

May 4, 2025April 28, 2025
Dynamic Table Generation Result
Posted in
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Dynamic Table Generation Result

Challenge No. 16: (Excel formulas also welcome)
Generate the Result table shown.
Solved using: Power Query (List.Distinct, Table.Pivot, Table.PromoteHeaders).

May 4, 2025July 30, 2025

Posts pagination

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  • 96 Common Challenges in Power Query
  • Advanced Mathematics Problem
  • Aggregation & Summarization
  • Books
  • Column Splitting
  • Column Transformation
  • Crispo Challenges
  • Custom Aggregation & Summarization
  • Custom Grouping
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  • Data Transformation
  • data validation
  • Date & Time Handling
  • Excel Challenges
  • ExcelBI Excel Challenges
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  • Financial Problems
  • Indexing & Ranking
  • Merging & Joining
  • Missing Values
  • Omid Challenges
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  • Python Challenges
  • Text Processing
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  • ⭐️⭐️⭐️⭐️⭐️⭐️Complex

BYROW CHAR CODE CONCAT DROP FILTER HSTACK IF IFERROR INDEX LAMBDA LEFT LEN LET List.Distinct List.Transform LOOKUP MAP MATCH MAX MID MONTH Python Python Automation Python for Data Analysis Python for Excel REDUCE ROW ROWS SCAN SEQUENCE SORT SUBSTITUTE Table.AddColumn Table.Group Table.SelectRows TAKE Text.Combine Text.Split TEXTJOIN TEXTSPLIT TOCOL UNIQUE VSTACK XLOOKUP

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  • By Difficulty
    • ⭐️ Beginner
    • ⭐️⭐️ Easy
    • ⭐️⭐️⭐️ Intermediate
    • ⭐️⭐️⭐️⭐️ Advanced
    • ⭐️⭐️⭐️⭐️⭐️Expert
    • ⭐️⭐️⭐️⭐️⭐️⭐️Complex
  • By Topic
    • Advanced Mathematics Problem
    • Aggregation & Summarization
    • Column Splitting
    • Column Transformation
    • Custom Grouping
    • Data Cleaning
    • Data Transformation
    • Date & Time Handling
    • Financial Problems
    • Indexing & Ranking
    • Merging & Joining
    • Missing Values
    • Pivot & Unpivot
    • Text Processing
  • By Creator
    • Omid Challenges
    • ExcelBI Excel Challenges
    • ExcelBI Power Query Challenges
    • Crispo Challenges
  • By Software
    • DAX Challenges
    • Excel Challenges
    • Excel VBA Challenges
    • Google Sheets Challenges
    • Office Script Challenges
    • Power Query Challenges
    • Python Challenges
    • R Challenges
    • SQL Challenges
  • Books
    • 96 Common Challenges in Power Query