The Conversion Process

When you press the Convert button, SpreadsheetConverter creates a new, calculating web page for your blog or website. This Online Help page describes what happens during the conversion process and some of the issues that may arise.

When you convert a spreadsheet to a web page, it is saved in your PC and you can test it there. This Help page describes what’s going on behind the curtains, and points you to other information sources if you want more detail.

To help you publish the web page on the world-wide web, we provide a secure connection to file sharing services where you may share your web page.



  • Start Excel.
  • Open the spreadsheet in Excel.
  • Make any last-minute changes.
  • Save the spreadsheet.
  • Navigate to the SpreadsheetConverter ribbon menu.
  • Select the flavor or output format.
  • Click Convert to start the conversion.
  • Check for error messages.
  • If you are designing a mobile calculator, just scan the barcode provided for Instant Testing.

For details, please follow the sales tax calculator tutorial.

After conversion, a web version of your spreadsheet has been stored in the folder designated by your settings. Your settings may also request that the web page opens automatically in one or more web browsers.

If you open the History List from the SpreadsheetConverter menu, the converted web page will appear on top. Move your mouse over the file name and select what browser to open the web page in. You can also open the web page folder in the Windows Explorer and see the output file structure.

Screenshot of the History list of converted web pages

The localhost web server

When you install SpreadsheetConverter, you also install a miniature web server with the sole mission to host the converted web pages that we store in the folder you have chosen in the Settings. When you open a calculator from the History list, the web browser will fetch it from this local web server using the reserved address localhost.

If you have any problems viewing converted web pages from the History list, it may be that your Windows environment is blocking the access to the local web server. Should this happen, please follow the instructions on how to open ports in the Windows firewall for Instant Testing. You can also contact our Help desk and we will help you.

Testing the web page

Using the local web server, you should test the web page and compare it to the Excel spreadsheet you created it from. You may want to adjust the formatting or open more fields for input. If you have any problems or questions, please consult the Online Help pages before you contact our Help Desk.

Sharing the web page

Publish to Cloud

SpreadsheetConverter comes with built-in web hosting. Just select Publish to Cloud on the menu to upload a converted web page. With the press of a button, you even get a complete HTML structure to insert the calculator into any blog or website as an iframe.

QuickNode sharing

If you use Node.js, you may use our QuickNode service, which let’s you upload and test a Node.js calculator on our web servers for up to seven days. After that, you must publish it on any public Node.js-enabled web server.

For more information, visit the Node.js help page.

Any website with FTP

The Tutorials page  contains a tutorial on how to upload a converted calculator or form using the File Transfer Protocol using FileZilla or any other FTP client.

Working with more than one flavor

Most people only work with one format of the web page. If you have a license for more than one flavor of SpreadsheetConverter, be aware that you cannot convert a spreadsheet for more than one flavor at a time. The most recent conversion overwrites the previous also when the flavors are different.