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Bottom Three Unique Values
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  • ⭐️ Beginner

Bottom Three Unique Values

Challenge No. 650: List the bottom 3 unique values across the columns.
Solved using: Python.

January 21, 2026July 21, 2025
Running Total With Reset
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  • Custom Grouping
  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Running Total With Reset

Challenge No. 649: Calculate the running total for each group.
Solved using: Python.

January 20, 2026July 21, 2025
Perfect Square And Cube
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  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Perfect Square And Cube

Challenge No. 648: List the first 20 numbers which are both perfect square and perfect cube.
Solved using: Python.

January 20, 2026July 21, 2025
Pattern Recognition Generator
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  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Pattern Recognition Generator

Challenge No. 647: Understand the pattern and generate it.
Solved using: Python.

January 19, 2026July 21, 2025
Insert Quarterly Totals
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  • ⭐️ Beginner

Insert Quarterly Totals

Challenge No. 646: Insert Quarterly total line after Mar, Jun, Jul and Dec.
Solved using: Python in Excel.

January 19, 2026July 21, 2025
Align WBS Hierarchy Data
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  • ⭐️⭐️⭐️ Intermediate

Align WBS Hierarchy Data

Challenge No. 645: Today’s challenge is contributed by Ahmad Syawal Ramli.
Solved using: Python.

January 18, 2026July 21, 2025
Names With Total Costs
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  • ⭐️ Beginner

Names With Total Costs

Challenge No. 644: List All names and total cost against each name.
Solved using: R.

January 18, 2026
Swap Number Sequences
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  • ⭐️⭐️⭐️ Intermediate

Swap Number Sequences

Challenge No. 643: Replace next set of numbers with previous set of numbers and first set of numbers will be replaced by last set of numbers.
Solved using: Python in Excel.

January 17, 2026July 21, 2025
List Alphabet And Numbers
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  • ⭐️⭐️ Easy

List Alphabet And Numbers

Challenge No. 642: List all consecutive alphabets in Data column separated by comma.
Solved using: Excel VBA.

January 17, 2026July 21, 2025
Wrap Rows By Number Gaps
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  • ⭐️⭐️ Easy

Wrap Rows By Number Gaps

Challenge No. 641: Extend the given numbers into row and wrap the row where absolute gap between two subsequent numbers is greater than 2.
Solved using: R.

January 16, 2026

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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