Sankey Diagram — energy-flow example
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These are fictional teaching data, not measurements from an energy system.
All three flow values use the same unit: kWh.
60 kWh useful output + 25 kWh conversion losses + 15 kWh distribution losses = 100 kWh.

Contents
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sankey-energy-example.xlsx — one worksheet, Flows, with headers in row 1 and data in rows 2–4.
sankey-energy-example.sad — the same data and diagram saved by Sankey Diagram.
README.txt — these instructions.

Import the workbook
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1. Open Sankey Diagram. Use a new document for this example.
2. Choose Import data to the table (the import icon below the data grid).
3. Open sankey-energy-example.xlsx. In the Flows worksheet select A2:D4,
   excluding the header row, then choose Import Selected.
4. Answer No to “Do the selected columns contain headers?” for this selection.
5. Drag column A to Source, B to Target, C to Value and D to Note. Choose Ok.
6. Verify three rows, the values 60, 25, 15, and the status Rows: 3, Sum: 100.00.
7. Choose Generate Diagram. Useful output should be the widest of the three bands.
8. Optionally set Header to Energy example (kWh) in Diagram Options and choose Ok.
9. Use File > Save As to save your own copy as a .sad file.

Open the saved example
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Use File > Open in Sankey Diagram and select sankey-energy-example.sad.
This is a native project, not an Excel workbook; use the import command for .xlsx.

Keep Value cells numeric (60, not “60 kWh”). The Note column is optional.
Do not include a separate total row in the imported range.
For a multi-stage dataset, a sum across every link may count the same quantity
at successive stages: check the flows at each stage rather than treating that
sum as the unique amount entering the whole system.

Tested on 14 September 2026 in the installed Microsoft Store package of
Sankey Diagram, version 1.0.23.0: XLSX import, mapping, generation, save and reopen.
The test covers this small positive-value dataset. It does not establish support
for every spreadsheet format or every possible flow structure.

Guide: https://definedbytes.com/sankey-chart/#data-guide
Support: https://definedbytes.com/support/
