One system, every report on brand.
Stop styling each workbook by hand. A design system defines your colors, fonts, spacing, and layout once — so every Excel dashboard and report looks consistent and updates in one place.
Joshua Cottrell-Schloemer · 2× Microsoft Excel MVP · worked with 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, eyeballing colors and fonts every time. The result is a folder of files that all look slightly different — and a designer's worst nightmare when the brand changes and someone has to update them one by one.
A design system fixes that. It's the natural extension of good Excel design: instead of designing one beautiful dashboard, you define the rules behind the look — the palette, the typefaces, the spacing grid, the chart styling, the standard layouts — and reuse them across every report. New reports start on brand. Old reports update from one place.
The payoff is blunt: reporting that's consistent, faster to produce, and easier to maintain. Your numbers look like they came from the same company, because they did.
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 headings and figures read the same across the whole reporting suite.
Spacing & grid
Standard margins, column widths, and 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, and page templates so a new report is assembled from known parts instead of designed 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.
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
- Color, type, spacing, chart, and component rules
- 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 — defined, with principles and examples.
Read the definition →The Excel Theme Guide
The $149 DIY product for building your own branded Excel theme.
Get the guide →Custom Excel templates
Want a single template branded to your data? Customize one for a flat $1,000.
See custom templates →Dashboard examples
See a consistent design system in action across polished dashboards.
See examples →Trusted by teams that care how data looks
Beyond client work with teams at Microsoft, Kellogg's, Philips, and Novo Nordisk, Big Excel Energy reaches a community of 480,000 followers on TikTok and 20,000 newsletter subscribers, and has shared nearly a million Excel design files. More about Josh →
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. A design system makes reporting consistent and on-brand, faster to produce, and easier to maintain — because the colors, fonts, and layout rules live in one place.
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 spacing, layout, chart, and component rules on top of the theme, so an entire reporting suite stays consistent, not just one workbook.
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, fonts, and 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 applied across your team's reporting is done as a consulting engagement, with project minimums typically starting at $5,000 depending on scope.