How to Unpivot Multiple Sheets in Power Query using Custom Functions | Step-by-Step Guide скачать в хорошем качестве

How to Unpivot Multiple Sheets in Power Query using Custom Functions | Step-by-Step Guide

Struggling with data spread across multiple year-wise tabs? Manually copying and pasting Jan-Dec columns into a master list is a productivity killer. In this video, I’ll show you how to automate this entire workflow using Power Query. We will transform "Wide Format" data into a "Long Format" (Pivot-ready) using Unpivot Other Columns and Custom Functions. Key Highlights: The Problem: Why Jan-Dec columns in multiple sheets make analysis impossible. The Solution: Creating a transformation template (Helper Query logic). No-Code Automation: Converting your steps into a Custom Function to process all sheets in one click. Scalability: How your report will auto-update when you add new years or months. Practice File Link: 📥 [https://1drv.ms/x/c/81f2ae17fa2100db/...] (I highly recommend downloading the file and practicing along. After 2-3 attempts, you'll be able to do this in your sleep!) Video Timestamps [00:14] Introduction: Why manual copy-pasting is a productivity killer. [01:25] Data Walkthrough: Analyzing the "Wide Format" structure from 2016 to 2025. [01:52] The Challenges: Why you can't build a Pivot Table with column-based months. [03:01] The Goal: Transforming data into "Long Format" for better analysis. [03:29] Power Query Setup: Importing the Excel workbook and all its sheets. [04:20] The Transformation Strategy: Planning the Helper Query logic. [05:17] Creating Parameters: Setting up the address for the first row of data. [07:45] Building the Transformation Query: Removing totals and cleaning the sample. [09:25] Mastering Unpivot: Why "Unpivot Other Columns" is superior for scalability. [11:37] Converting to Custom Function: Turning cleaning steps into an automated machine. [12:30] Applying the Function: Invoking the custom function across all year-wise tabs. [15:26] Advanced Tip: Using Date.FromText to create a unified Date column. [19:10] Final Analysis: Building a dynamic Pivot Table and Trend Chart. [22:42] Outro: Recap and upcoming Power Pivot series announcement.