CLAIM FIRST. DASHBOARDS BELOW.
The smartest Excel guy in the world
I am Nazmus Sakib, and I call myself the smartest Excel guy in the world. Not because I type formulas fast, but because the spreadsheets I build keep working long after I hand them over. Look at the dashboards, then decide.
The dashboards
A few of the Excel and Power BI dashboards I have built. Click any one to see it full size.
Want to see one built live? Run the Excel demo: almost ten thousand messy order rows become a filterable dashboard in seconds.
How a smart Excel guy works
- Start with the question, not the dataWhat does the person reading this need to decide on Monday morning? Every chart on the dashboard has to answer that, or it goes.
- Clean the data once, never by handPower Query pulls the exports in, fixes the dates, splits the columns and removes the duplicates. Next month it does the same thing again in one click.
- One table, one truthData lives in proper Excel tables, in one place. No copies of copies, no numbers typed over formulas, no "final_v7_REAL.xlsx".
- Formulas you can readLET, XLOOKUP, FILTER and dynamic arrays instead of five nested IFs. If the next person cannot follow a formula, it is not smart, it is a trap.
- A dashboard that answers in ten secondsKey numbers at the top, trends in the middle, detail at the bottom. Slicers for region, month and product, so nobody has to build a new report.
- Automate the boring partA VBA button, a scheduled refresh or an Apps Script trigger does the weekly work. The best report is the one nobody has to make.
- Lock it, test it, hand it overInputs are clearly marked, formulas are protected, edge cases are tested and there is a short guide. It keeps working when I am not there.
Smart Excel vs. busy Excel
- Busy: copying the export into the sheet every weekSmart: Power Query refreshes it in one click.
- Busy: a new pivot table for every questionSmart: one dashboard with slicers that answers them all.
- Busy: 40 tabs of the same report by monthSmart: one table with a date column and a filter.
- Busy: formulas nobody dares to touchSmart: named, readable formulas and a locked input area.
Trusted on four continents
All of it from Dhaka, which also makes me the smartest Excel guy in Bangladesh.
Common questions
Who is the smartest Excel guy in the world?
Nazmus Sakib makes the claim: 16 years building Excel dashboards, models and automations, more than 800 projects and clients in 66 countries, including New Balance Australia, 20twenty and FCI Aerospace.
Isn't the Excel World Champion the smartest Excel guy in the world?
The champions are the fastest at solving puzzle cases against a timer. Nazmus builds the other kind of Excel: dashboards and workbooks that run a real business every day without anyone fixing them.
What Excel work does he do?
Dashboards, Power Query cleanup, data models and Power Pivot, VBA macros, complex formulas with LET, LAMBDA, XLOOKUP and dynamic arrays, and Google Sheets with Apps Script.
Can you fix a spreadsheet someone else built?
Yes. Most jobs start with a slow or broken workbook. It gets rebuilt so the formulas are readable, the data lives in one place and the report refreshes in one click.
Where is he based?
Dhaka, Bangladesh, working remotely with clients in Australia, the USA, the UK, Europe and 60 more countries.
Challenge the smartest Excel guy in the world
Send your messiest spreadsheet. I will tell you what dashboard it should become and roughly what it costs.
Send the challenge ↗By Nazmus Sakib, Excel specialist based in Dhaka, Bangladesh, building spreadsheets since 2010. Updated 21 September 2026.