Your spreadsheet is already an app
How to turn the Excel file your business runs on into a real web app, without losing a single formula.
Many businesses already run on a spreadsheet that works like an app: it stores data, applies rules and produces answers. Turning it into a web app means moving the data into a real database, rewriting the formulas as tested code and adding screens, logins and sharing. The goal is the same logic, now safe to share with your whole team or your customers.
Signs your spreadsheet should be an app
- Several people edit it and someone always overwrites someone else.
- It crashes, gets slow or shows errors like
#REF!and#VALUE!. - Only one person really understands how to use it.
- You want to share it with clients, but you cannot send them the file.
- You copy data into it from other systems by hand every week.
A real example
One of our founders' fathers spent years building an Excel model to analyze stocks. It worked, but it was fragile and nobody else could use it, so it was never shared. We imported it into FastCloud Studio and turned it into a web app that pulls data from several sources and lets anyone find the stocks his model rates highest. The logic is his. The app is now something he can keep editing and share.
How the conversion works
1. Import the spreadsheet
Upload the .xlsx or .csv file. The sheets become tables in a real database, and the data is cleaned on the way in.
2. Turn formulas into code
The formulas that hold your business logic are rewritten as real code, so they run the same way every time and can be tested.
3. Add screens, logins and sharing
Instead of tabs, people get forms, tables and dashboards. Each person signs in and sees what their role allows.
4. Test it against the original
Automated tests check that the app produces the same answers as the spreadsheet did, so nothing is lost in translation.
5. Publish it
With Studio, the app goes live on your own AWS account, and the code lives in your GitHub repository.
Do it yourself or have it done for you
With FastCloud Studio you can do the conversion yourself. If you prefer, our team imports the spreadsheet and delivers a working, tested app for a one-time fee, and you keep building from there.
Frequently asked questions
Can I convert an Excel spreadsheet into a web app?
Yes. The data moves into a real database, formulas become tested code, and you add screens, logins and sharing. The result runs on the web instead of in a file.
Will my formulas still work?
The logic is kept and rewritten as code, then automated tests compare the results with the original spreadsheet.
What about CSV or Google Sheets?
CSV files import directly. Google Sheets can be exported as .xlsx or .csv and imported the same way.
Send us what you have. We reply within one business day.