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Add Task Duration to Start
Posted in
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • Pivot & Unpivot
  • ⭐️⭐️⭐️ Intermediate

Add Task Duration to Start

Challenge No. 209: Populate the End dates against all owners in a pivot format as shown.
Solved using: Python.

October 28, 2025July 14, 2025
Decrypt Caesar Cipher Variation
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  • ExcelBI Excel Challenges
  • Text Processing
  • ⭐️⭐️ Easy

Decrypt Caesar Cipher Variation

Challenge No. 480: Decrypt the given Encrypted text.
Solved using: Python in Excel.

October 28, 2025July 23, 2025
Insert Group Name
Posted in
  • Crispo Challenges
  • Custom Grouping
  • ⭐️ Beginner

Insert Group Name

Challenge No. 66: Group the staff and insert the group name after the last count.
Solved using: Python.

October 27, 2025July 11, 2025
Generate Recaman’s Sequence
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Generate Recaman’s Sequence

Challenge No. 479: Calculate first 10000 entries of Recaman’s sequence –
a(0) = 0,
for n > 0, a(n) = a(n-1) – n if nonnegative and not already in the sequence,
otherwise a(n) = a(n-1) + n.
Solved using: Python in Excel.

October 27, 2025July 23, 2025
Calculate Three Year Average
Posted in
  • Custom Grouping
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️⭐️Expert

Calculate Three Year Average

Challenge No. 208: Find the defects for each month group for which 3 years moving averages (MV) are given.
Solved using: Python in Excel.

October 27, 2025July 14, 2025
Merge Tables by Org and Year
Posted in
  • ExcelBI Excel Challenges
  • Merging & Joining
  • ⭐️⭐️ Easy

Merge Tables by Org and Year

Challenge No. 478: Merger the tables into a single table.
Solved using: Python.

October 27, 2025July 23, 2025
Triangular Record Grouping
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  • Date & Time Handling
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Triangular Record Grouping

Challenge No. 477: Align the data as shown which is 1 record, then 2 records, then 3 records and so on.
Solved using: Python in Excel.

October 26, 2025July 23, 2025
Summarize Yearly Sales
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  • ExcelBI Power Query Challenges
  • ⭐️ Beginner

Summarize Yearly Sales

Challenge No. 207: Generate the result table from problem table.
Solved using: Python in Excel.

October 26, 2025July 14, 2025
Distribute Sales Equally
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Distribute Sales Equally

Challenge No. 476: Divide the Sales from Table1 into Table2 equally over Stores.
Solved using: Python.

October 26, 2025July 23, 2025
Compile Role Based Totals
Posted in
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️ Intermediate

Compile Role Based Totals

Challenge No. 206: Generate the result table from problem table.
Solved using: Python in Excel.

October 25, 2025July 14, 2025

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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