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Home » Challenges » By Difficulty » ⭐️⭐️⭐️⭐️ Advanced » Page 4

⭐️⭐️⭐️⭐️ Advanced

Complex challenges for experienced users.

Shorten IPv6 with Rules
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Shorten IPv6 with Rules

Challenge No. 381: IPv6 address is represented as x:x:x:x:x:x:x:x (total 8 x) where x consists of 1 to 4 Hexadecimal digits.
Solved using: Python in Excel.

September 8, 2025July 22, 2025
Fill Missing Time Fields
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  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Fill Missing Time Fields

Challenge No. 150: You need to fill in the blanks.
Solved using: Python.

September 6, 2025
Monthly Per Diem Calculation
Posted in
  • Column Splitting
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Monthly Per Diem Calculation

Challenge No. 149: The data is for business trip start and end dates of employees.
Solved using: Python.

September 5, 2025July 14, 2025
Boundary Rows per Threshold
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  • Custom Grouping
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Boundary Rows per Threshold

Challenge No. 146: For a group –
List the last row where value < Threshold and also list the first row where value > Threshold
If more than one row meets the criterion, then capture all those rows.
Solved using: Python in Excel.

September 2, 2025July 14, 2025
12-Month Cumulative Sales
Posted in
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

12-Month Cumulative Sales

Challenge No. 145: For every store, find the cumulative sale for 12 months periods.
Solved using: R.

September 1, 2025July 14, 2025
Reverse Only English Alphabets
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  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Reverse Only English Alphabets

Challenge No. 360: Reverse the English alphabets in the strings.
Solved using: R.

August 29, 2025July 21, 2025
Exclude Weekend Vacation Dates
Posted in
  • Date & Time Handling
  • ExcelBI Power Query Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Exclude Weekend Vacation Dates

Challenge No. 139: Prepare the Result table.
Solved using: DAX.

August 27, 2025July 14, 2025
Create a Christmas Tree Shape
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  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Create a Christmas Tree Shape

Challenge No. 354: Merry Christmas to all the readers!!! Today’s challenge, undoubtedly, will be on Christmas.
Solved using: Power Query.

August 26, 2025July 21, 2025
List Interprime Numbers
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

List Interprime Numbers

Challenge No. 352: List the Interprime Numbers.
Solved using: Python in Excel.

August 25, 2025July 21, 2025
Find nearest Palindrome numbers
Posted in
  • ExcelBI Excel Challenges
  • ⭐️⭐️⭐️⭐️ Advanced

Find nearest Palindrome numbers

Challenge No. 343: Palindrome number is that which is same even when read backwards.
Solved using: R.

August 20, 2025July 21, 2025

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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
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  • By Software
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  • Books
    • 96 Common Challenges in Power Query