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Encrypt Using Columnar Cipher
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  • ⭐️⭐️ Easy

Encrypt Using Columnar Cipher

Challenge No. 442: Columnar Transposition Cipher
Write the keyword in a row
Rank the letters of keyword as per their position in English language in descending order.
Solved using: Python in Excel.

October 9, 2025July 23, 2025
Generate Integers From Ranges
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  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Generate Integers From Ranges

Challenge No. 441: Generate the integers corresponding to intervals.
Solved using: Python.

October 8, 2025July 23, 2025
Allocate Amounts by Quarter Days
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  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️ Intermediate

Allocate Amounts by Quarter Days

Challenge No. 188: Divide the amount across quarters falling in between From and To Date.
Solved using: Python in Excel.

October 8, 2025July 14, 2025
Interpolate Grid Position Values
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  • ⭐️⭐️⭐️⭐️ Advanced

Interpolate Grid Position Values

Challenge No. 440: Today’s challenge is proposed by Sunny Baggu
a is for row 1 and b is for column 1.
Solved using: Python in Excel.

October 8, 2025July 23, 2025
Find Interpolated Grid Values
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  • ⭐️⭐️⭐️⭐️ Advanced

Find Interpolated Grid Values

Challenge No. 439: Today’s challenge is proposed by Sunny Baggu
a is for row 1 and b is for column 1.
Solved using: Python in Excel.

October 7, 2025July 23, 2025
Yearly Sales for All Continents
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  • Missing Values
  • ⭐️⭐️ Easy

Yearly Sales for All Continents

Challenge No. 187: Generate the result table from problem table.
Solved using: Python in Excel.

October 7, 2025July 14, 2025
Convert Resistance to Ohms Unit
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  • ⭐️⭐️ Easy

Convert Resistance to Ohms Unit

Challenge No. 438: Now, let’s express the derived values as K, M or G (Kilo, Mega or Giga).
Solved using: Python in Excel.

October 7, 2025July 23, 2025
Encrypt Using Bifid Cipher
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  • Text Processing
  • ⭐️⭐️⭐️ Intermediate

Encrypt Using Bifid Cipher

Challenge No. 437: Bifid Cipher with Keyword
Suppose we want to encrypt the message “BATTLE” and keyword is “ROTORS”.
Solved using: Python in Excel.

October 6, 2025July 23, 2025
Match Deliveries with Calendar Dates
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  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • Merging & Joining
  • ⭐️⭐️⭐️ Intermediate

Match Deliveries with Calendar Dates

Challenge No. 186: Merge both the tables.
Solved using: Python in Excel.

October 6, 2025July 14, 2025
List Prime Pandigital Numbers
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  • ⭐️⭐️⭐️⭐️⭐️Expert

List Prime Pandigital Numbers

Challenge No. 436: An n digit number is Pandigital if it makes use of all the digits 1 to n exactly once.
Solved using: Excel VBA.

October 6, 2025July 23, 2025

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  • 96 Common Challenges in Power Query
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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
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    • R Challenges
    • SQL Challenges
  • Books
    • 96 Common Challenges in Power Query