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Custom Grouping! Part 5
Posted in
  • Custom Grouping
  • Excel Challenges
  • Omid Challenges
  • Power Query Challenges
  • Python Challenges
  • ⭐️⭐️ Easy

Custom Grouping! Part 5

Challenge No. 123: Group the sales values in 10-day intervals, starting from January 1, 2024.
Solved using:Excel (BYROW, DAY, GROUPBY), Google Sheets, Power Query (Table.Group, List.Transform, Table.Group), Python, Python in Excel, and R.

June 4, 2025July 11, 2025
Determine Result Table Based on Rules
Posted in
  • Custom Grouping
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️ Intermediate

Determine Result Table Based on Rules

Challenge No. 47: Count the process groups as given.
Solved using: Power Query.

June 4, 2025July 30, 2025
Symbol Replace by Frequency
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Symbol Replace by Frequency

Challenge No. 163: If an alphabet appears once in a word, replace it with a “?”.
Solved using: Power Query (Table.AddColumn).

June 4, 2025July 11, 2025
Vernam Cipher Encrypt
Posted in
  • ExcelBI Excel Challenges
  • Text Processing
  • ⭐️ Beginner

Vernam Cipher Encrypt

Challenge No. 162: Vernam Cipher (also known as One time pad cipher)
1.
Solved using: Power Query (List.ReplaceMatchingItems, List.Transform, List.Zip).

June 3, 2025July 11, 2025
Counting TextString
Posted in
  • Crispo Challenges
  • ⭐️ Beginner

Counting TextString

Challenge No. 42: Count Stalls Stocking either Apple or Kiwi
Dynamic array function allowed, but Extra marks for Legacy solutions or PowerQuery Solution.
Solved using: Python.

June 3, 2025July 11, 2025
Reverse Long Words
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Reverse Long Words

Challenge No. 161: If a word in sentence has length > Number, then reverse that word.
Solved using: Power Query (Text.Combine).

June 3, 2025July 11, 2025
Table Transformation! Part 11
Posted in
  • Data Cleaning
  • Excel Challenges
  • Omid Challenges
  • Power Query Challenges
  • ⭐️⭐️⭐️ Intermediate

Table Transformation! Part 11

Challenge No. 122: Transform the question table into the reult table format.
Solved using:Excel (DROP, FILTER, HSTACK), Google Sheets, Power Query (List.Transform, Text.Contains, Table.AddColumn), Python, Python in Excel, and R.

June 3, 2025July 11, 2025
Create Date Range Based on Rules
Posted in
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Create Date Range Based on Rules

Challenge No. 46: Generate the result table as shown.
Solved using: SQL.

June 3, 2025July 30, 2025
Alphabet Prime Mapping
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Alphabet Prime Mapping

Challenge No. 160: Generate first 26 prime numbers starting with 2 till 101 (101 is 26th prime number).
Solved using: Python in Excel.

June 3, 2025July 11, 2025
Reverse Cities Columns
Posted in
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Reverse Cities Columns

Challenge No. 159: Reverse all columns from Cities1 to Cities5.
Solved using: Power Query (List.RemoveNull, List.Reverse, List.Transform).

June 2, 2025July 11, 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
  • Data Cleaning
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  • data validation
  • Date & Time Handling
  • Excel Challenges
  • ExcelBI Excel Challenges
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  • Financial Problems
  • Indexing & Ranking
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  • Omid Challenges
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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