What does the map show?

Every sheet as a box, with arrows showing which sheets feed which. Thicker arrows mean more formulas. Sheets are grouped into inputs, calculations and outputs, and links to other workbooks appear as their own boxes.

Is the file uploaded?

No. The workbook is read in your browser. Nothing leaves your computer.

What is a circular sheet link?

Two sheets that each use the other, such as Calc using Checks while Checks uses Calc. Excel may still calculate, but a change can loop back on itself and the totals become hard to trace.

Why does it flag hidden sheets?

A hidden sheet that feeds the results is a common hiding place for old rates and overrides. Anyone reviewing the file sees the output but not what drives it.

Does it follow named ranges?

Yes. If a formula uses a defined name like TaxRate, the map links it to the sheet that name points at.

Professional Excel Solutions

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Free tool · runs in your browser

Workbook Map

Free Excel workbook map - a diagram of how sheets feed each other with links to other files, hidden feeder sheets and circular sheet links flagged. Runs in your browser.

Drop an .xlsx here or click to choose

Read in your browser, never uploaded.

Inherited a workbook?

Turn a tangle into a model you can trust.

I restructure workbooks so data flows one way - inputs, calculations, outputs - with a written handover. See the audit and repair service.

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Direct channels

Score it, then
build it.

Free tools: 15
Time to result: <2m
Forms to fill: 0

1Run the tool
2Send the output
3Get the build

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Self-serve standards

Six rules on every free tool on this site.

Self-serve tools, not signup-walled demos. The same six rules on every calculator, audit and quiz we publish.

Norm 01
Runs in your browser
Every tool runs client-side. Nothing is uploaded, nothing is logged, nothing sits on a server between you and the result.
Norm 02
Zero signup, zero paywall
No email gate, no 'create a free account to see your score'. The full result lands on the same page, no funnel in between.
Norm 03
Result in under two minutes
If a tool takes longer than two minutes to give you an answer, we either simplify the inputs or we cut the tool.
Norm 04
Explains the score
A number without an explanation is decoration. Every tool tells you what the score means and what to do about it.
Norm 05
Updated for 2026 Excel
Tools are reviewed against current Excel - dynamic arrays, XLOOKUP, the modern function surface. Outdated tools get refreshed, not archived.
Norm 06
Reply if you want a build
If a tool surfaces a problem you want fixed, the senior owner replies to the score you send - same 24h window as a paid engagement.

Workbook Map

Turn a tangle into a model you can trust.

Score it, thenbuild it.

Six rules on every free tool on this site.

Runs in your browser

Zero signup, zero paywall

Result in under two minutes

Explains the score

Updated for 2026 Excel

Reply if you want a build

Score it, then
build it.