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SpreadsheetConverter reads your Excel spreadsheets and builds web pages from them.
SpreadsheetConverter v12 is a Microsoft Excel add-in that turns your spreadsheet into an interactive web page. Start with your existing .xlsx workbook, convert it in the task pane, and check the Messages tab before publishing.
Calculators, forms and charts
Just press the Convert button to make a web page or web app of your spreadsheet. Upload the web calculator and it is immediately live on the web; charts and all.
- What changed in version 12
- Benefits of SpreadsheetConverter
- Excel function conversion reference
- Install version 12
- Examples
Start in Excel
Install from the Add-ins store in desktop Excel on Windows or Mac. After accepting the permissions for your account, you can also use the add-in in Excel for the web.
Use SpreadsheetConverter on Mac and Linux
Use Excel Online in your browser. See SpreadsheetConverter for Mac and SpreadsheetConverter for Linux for the current workflow and setup requirements. Support for desktop Excel on Mac is in development.
Original explanation and earlier-version instructions
Historical reference: this original human-written page includes earlier interface screenshots, platform instructions and offers. Follow the current version 12 guidance above for the modern workflow.
SpreadsheetConverter is an add-on to Microsoft Excel that you download from our website and install on your Windows PC. Just press the Convert button to make a web page or web app of your spreadsheet. Upload the web calculator and it is immediately live on the web; charts and all.
SpreadsheetConverter reads your Excel spreadsheets and builds web pages from them. To learn more about how we can help you change the world with spreadsheets, visit the SpreadsheetConverter overview.

SpreadsheetConverter in many flavors
Our basic product is called SpreadsheetConverter HTML. It generates standard cross-platform web pages in HTML with the Excel functionality provided by Javascript programs and HTML5 charts embedded in the web page. The resulting web pages can be hosted on any web server and run in all modern web browsers in laptops, tablets and mobile devices. The web pages have a responsive design that allows your spreadsheets to dynamically reformat themselves to perfectly fit any screen size.
Anyone can develop mobile web apps for smartphones with the iPhone/Android version. Collect data on the road, or keep your favorite spreadsheet in your jeans pocket.
For advanced users, we provide Professional editions of the program, that cater for the extra needs of professional web authors and developers – and quite a few power users as well.
To buy a new license or add additional flavors to an existing license, visit the license shop.
Forms-to-inbox services
It is very easy to create electronic web forms based on spreadsheet templates. The doctor below is using a lifestyle survey that she first made herself in Excel. Using Excel made it very easy for her to hide sections of the survey that aren’t applicable to every patient, and to verify the consistency of each patient’s responses.
After she converted the intelligent survey form to a web page she can now use it on her tablet or phone or laptop, depending on the circumstances. As she presses Submit, every form is e-mailed to her inbox for simple archiving in the patient’s journal. Since the form is on the web, patients can even submit their own results from their own devices.

If your spreadsheet is used as an online form that visitors enter data into, you can add a Submit button to the form that sends each completed form to your e-mail inbox using our Free or Advanced Submit Service.
Learn more about how to get web forms directly to your Inbox.
Free submit service
The license for SpreadsheetConverter includes free processing of any web form created with the program. When someone completes the converted form and submits it for processing, it will be forwarded to your e-mail Inbox at no charge.
Learn more about the Free Submit Service.
Advanced submit service
The fee-based Advanced Submit Service allows you to store high volumes of submitted forms in a cloud database until you download them all at once in the file format of your choice.
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The calculations and data behind our Covid-19 risk assessment model are quite complex and without the Spreadsheet Converter we would have not been able to post the tool online in a reasonable time frame.
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We are thrilled to have found this solution and would highly recommend it to others considering upgrading their spreadsheets to online tools!
Try this Excel add-in now!


Click on Download to install and test this Excel add-in for Windows.
Click on Upload to let us convert a spreadsheet for you for free.