🛡️Data is processed locally – We cannot see your data
Unpivoting (Melting)
Upload a dataset to begin
Supported formats: .csv,.xlsx,.xls,.xlsm,.xlsb,.tsv
AboutUnpivoting (Melting)
Transform wide data (months as columns) into long format.Category: Transformation & LogicPreparing monthly sales sheets for database importCleaning survey data for visualizationRestructuring financial reports
The Unpivoting (Melting) tool is compatible with:PowerBITableauSQL Databases.If you accidentally need the wide layout back for a human-readable report, Pivot reverses this exact transformation; once the long format is ready, export it with CSV to XLSX for BI tools that expect an Excel input.Also known as "Melting" or "Reverse Pivot". This tool is essential for preparing Excel reports for Tableau, PowerBI, or Database ingestion. It takes columns that represent values (e.g., "Jan", "Feb", "Mar") and turns them into rows, creating a "clean" dataset.
Frequently Asked Questions:
What's "wide" vs "long" format?
Wide format spreads values across separate columns (like Jan, Feb, Mar), long format puts them in rows instead, which is what most databases and BI tools expect.
Why would Tableau or Power BI need long format?
Those tools generally expect one row per observation rather than one column per time period or category, so unpivoting is a common prep step before importing.
A standard prep step for BI developers loading spreadsheet exports into Tableau, Power BI, or a SQL table.