One system, every report on brand.
Stop styling each workbook by hand. Define your colors, fonts, spacing, and layout once, write the rules down, and every Excel dashboard and report you build after that comes out on brand and updates in one place.
Joshua Cottrell-Schloemer · 3× Microsoft Excel MVP · helped brands like Microsoft, Kellogg's, Philips, Novo Nordisk
An Excel dashboard design system is a reusable set of colors, fonts, spacing, and layout rules so every report looks consistent and updates in one place. Instead of restyling each file by hand, you define the rules once and apply them everywhere, the same way a brand uses a design system for its website and slides.
What it is and why it matters
Most teams build each report from scratch and eyeball the colors and fonts every time. You end up with a folder of files that all look slightly different, and when the brand changes someone has to open every file and update it by hand. I've done that job. It's tedious and nobody thanks you for it.
A design system fixes that. It's the natural extension of good Excel design: instead of designing one beautiful dashboard, you write down the rules behind the look (the palette, the typefaces, the spacing grid, the chart styling, the standard layouts) and reuse them on every report after it. New reports start on brand. Old reports update from one place. The templates I've rebuilt on this system are theme and color-mapped, so you can go to the Page Layout tab and pick a different theme and the whole file updates to match.
You get reporting that's consistent, faster to produce and easier to maintain. Your numbers look like they came from the same company, because they did.
The rules should live next to the reusable examples.
A useful design system makes the right decisions obvious: palette, typography, page grid, KPI cards, chart treatments, plus the hierarchy tying them all together.
What a design system defines
Color
A disciplined palette (brand colors plus one accent for "look here") applied the same way in every report so color always means something.
Typography
A consistent set of fonts and sizes for titles, labels, and numbers, so a heading in one report reads like a heading in every other one and the numbers always look like numbers.
Spacing & grid
Standard margins, column widths, alignment rules. Most "messy" spreadsheets are just a spacing problem the system solves once.
Charts
House styles for the charts you use most, stripped of clutter, so every visual tells the truth the same way without re-deciding each time.
Components & layout
Reusable KPI cards, headers, page templates - so you assemble a new report from known parts instead of designing it from a blank sheet.
One source of truth
The theme and rules live in one place. Change the brand once and every report built on the system updates with it.
Build it yourself, or have it built
Start DIY if you want to learn the system and apply it yourself. Go done-for-you when you need a bespoke, brand-wide system rolled out across a team. Either way, the system just makes good decisions repeatable, it won't rescue a report that has no story to tell.
DIY — The Excel Theme Guide
A do-it-yourself product for building your own consistent, branded Excel theme. What you get:
- A method for choosing colors and fonts that work in Excel
- Styling rules you apply across your own reports
- The foundation of a repeatable, branded look
- Yours to keep and reuse on every workbook
Done-for-you — bespoke system
A brand-wide Excel design system built for you and rolled out across your team. Scoped as a consulting engagement. What's included:
- A full system designed around your brand guidelines
- Every rule written down: color, type, spacing, charts, components
- Templates and themes your team builds future reports on
- Scope and timeline set during a short conversation
Related
What is Excel design?
The discipline a design system is built on, with the principles and examples behind it.
Read the definition →The Excel Theme Guide
The $149 DIY product for building your own branded Excel theme.
Get the guide →Custom Excel templates
Commission a bespoke Excel build. Or, if you already chose a compatible template, see whether the narrow Brand + Setup add-on fits.
See the two routes →Dashboard examples
See a consistent design system in action across polished dashboards.
See examples →Who I've done this for
I've helped brands like Microsoft, Kellogg's, Philips, and Novo Nordisk with their reporting and design work. Outside client work, 485,000+ followers on TikTok and 19,000+ newsletter subscribers follow along, and nearly a million of my free Excel templates are out in the wild. More about me →
Design system questions
What is an Excel dashboard design system?
An Excel dashboard design system is a reusable set of colors, fonts, spacing, and layout rules so every report looks consistent and updates in one place. Instead of styling each workbook by hand, you define the rules once and apply them everywhere, the same way a brand uses a design system for its website and slides.
Why does an Excel design system matter?
Without a system, every report looks slightly different and updating the look means editing each file by hand. With one, reporting comes out consistent and on-brand, it's faster to produce, and the next brand refresh is a rule change instead of a file-by-file cleanup.
What's the difference between an Excel theme and a design system?
An Excel theme is the colors and fonts layer, the visual palette. A design system is broader. It adds layout and spacing rules plus chart and component styling on top of the theme, so the whole reporting suite stays consistent rather than one workbook at a time.
Can I build an Excel design system myself?
Yes. The Excel Theme Guide is a do-it-yourself product, priced at $149, that walks you through building your own consistent, branded Excel theme: the colors and fonts plus the styling rules you then apply across your own reports.
Can you build an Excel design system for our brand?
Yes. A bespoke, brand-wide Excel design system for your team's reporting is something I build as a consulting engagement, with project minimums typically starting at $5,000 depending on scope.