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Top Duration Players
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  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Top Duration Players

Challenge No. 158: List the top 3 players in decreasing order of duration.
Solved using: Python in Excel.

June 2, 2025July 11, 2025
Power!
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  • Advanced Mathematics Problem
  • Excel Challenges
  • Omid Challenges
  • Power Query Challenges
  • ⭐️⭐️ Easy

Power!

Challenge No. 121: Create the given table for the continuous values of power and bases.
Solved using:Excel (LAMBDA, MAKEARRAY, ROW), Office Script, Power Query (List.Transform), and Python in Excel.

June 2, 2025July 11, 2025
Generate Unique Records Based on Rules
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  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Generate Unique Records Based on Rules

Challenge No. 45: Calculate Running Total for each dealer.
Solved using: SQL.

June 2, 2025July 30, 2025
Workday Count Between Dates
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  • Date & Time Handling
  • ExcelBI Excel Challenges
  • ⭐️⭐️ Easy

Workday Count Between Dates

Challenge No. 157: Find the number of workdays between two dates (From & To) for Weekends given in column E.
Solved using: Power Query (NETWORKDAYS.INTL).

June 2, 2025July 11, 2025
Find Pythagorean Dates
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  • Date & Time Handling
  • ExcelBI Excel Challenges
  • ⭐️ Beginner

Find Pythagorean Dates

Challenge No. 156: Pythagorean dates are those dates where DD^2 + MM^2 = YY^2
For example: 16-Dec-2020 where 16^2 + 12 ^2 = 20^2
List all Pythagorean dates (in YYYYMMDD format) from current century.
Solved using: Python in Excel.

June 1, 2025July 11, 2025
Data Validation
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  • Crispo Challenges
  • data validation
  • ⭐️⭐️ Easy

Data Validation

Challenge No. 40: Meeting Scheduled only on the following Workday (Mon, Wed, Fri) Write a dynamic formula to paste in Data Validation.
Solved using: Excel.

June 1, 2025July 11, 2025
Polybius Cipher Encrypt
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  • Text Processing
  • ⭐️ Beginner

Polybius Cipher Encrypt

Challenge No. 155: Polybius cipher
Encrypt the text in column I as per grid in A2:G8.
Solved using: Python in Excel.

June 1, 2025July 11, 2025
Payments Duration!
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  • Financial Problems
  • Omid Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Payments Duration!

Challenge No. 120: In challenge 60, we attempted to calculate the source of payment for each receipt.
Solved using:Excel, Google Sheets, Power Query (List.Transform), Python in Excel, and R.

June 1, 2025July 11, 2025
Find Customer Stats With Conditions
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  • ⭐️⭐️⭐️⭐️ Advanced

Find Customer Stats With Conditions

Challenge No. 44: Generate result table as shown.
Solved using: Python in Excel.

June 1, 2025July 30, 2025
Convert Roman to Decimal
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  • ⭐️⭐️ Easy

Convert Roman to Decimal

Challenge No. 154: Convert from Roman to Decimal.
Solved using: Python in Excel.

June 1, 2025July 11, 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
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    • R Challenges
    • SQL Challenges
  • Books
    • 96 Common Challenges in Power Query