SpreadsheetConverter v12
- Easy install from the Microsoft Marketplace, from within Excel. Search for SpreadsheetConverter in Excel’s Add-ins store and click Add — no downloads, no manifest files. See the install page.
- Excel on the web is supported.
- In-place refresh when a newer version is available — no need to download updates.
- Modern page renderer. A new renderer is now the default, with Classic retained as an option. It brings updated controls and wizard presentation, accessibility labels, and integration with SpreadsheetConverter Server.
- Publishing and embedding. The add-in supports authenticated publishing to SpreadsheetConverter Server and choosing which page opens afterwards. Server-hosted forms can be embedded inline on external websites, including WordPress.
- Data-table workflows. Mark ranges as data tables, name them, and choose embedded data or supported server-backed modes. This is a new way to package and connect the tabular data your calculations use.
Current trial and licensing
SpreadsheetConverter offers a feature-limited free trial so you can convert real workbooks and see the result in your browser before you buy. To remove the trial limits you need a paid subscription (license).
Once you have a license key, open the add-in's Account tab, expand “I have a license key”, and enter the key with the email it was issued to. Your entitlement then follows your Microsoft 365 sign-in automatically — on every device where you use the add-in.
Our basic product converts Excel spreadsheets to HTML with embedded JavaScript that can be used with any web server. The smartphone version converts Excel for iPhone and Android.
Running the formulas in the web browser
If the spreadsheet formulas are calculated in the web browser, the whole spreadsheet can be placed very neatly in one single package sent to the browser.
Advantages
- This is normally the fastest method, since there is no network communication after the web page has been downloaded to the browser.
- All cell values can be updated immediately after leaving an input field.
- The web page can be served from any web server, there are no special dependencies on the web server whatsoever.
- Since the server is not involved in the rendering of the web page, performance is only limited by each user’s technical environment.
- The web page can be used offline, even if you’re not connected to the Internet.
Disadvantages
- Client-side calculations can be slow for large spreadsheets with many formulas.
- The web page contains all the programming code that performs the formula calculations. This makes can make the download slower. It can also impact the use of the spreadsheet with smaller devices like handheld computers or smartphones.
- The web page cannot interact dynamically with databases and other real-time data sources on the server.
SpreadsheetConverter HTML
SpreadsheetConverter HTML converts an Excel spreadsheet into an HTML web page that uses embedded JavaScript code to calculate the formulas. You don’t need any programming or web design skills to use SpreadsheetConverter HTML. The result of the conversion is a portable web calculator or smart form that works on all devices and fluidly adapts to the screen size of any smartphone, tablet or laptop.
Explore prices and buying options.
SpreadsheetConverter iPhone/Android
Build powerful web forms with Excel
This developer is using Excel to create a membership application form, and previewing the form on a Sony Xperia smartphone.
You only need basic Excel skills to develop powerful web forms.
Running the formulas in the web server
If the formulas are calculated on the web server, the web page consists of two or more separate parts, a standard web page that is downloaded to the browser and one or more packages of programming code that reside on the server.
Advantages
- It is impossible to access the business formulas on the server.
- Very large spreadsheets can be recalculated faster on a server.
- Using modern AJAX technology, spreadsheet cells are still updated immediately, with a minimum of network communication between the browser and the web server.
- Backend-integration is much easier, e.g to get the current interest rate for a mortgage calculator from a database or other real-time data source on or near the web server.
- Web pages can be password protected, since the web server is only available to authenticated users.
- The web page becomes smaller and can be downloaded faster, since it no longer contains the program code that calculates the cell formulas. This may also make it possible to use a complex spreadsheet with smaller devices like handheld computers or smartphones.
Disadvantages
- The web page can only be used online, with a connection to the server.
- There is a theoretical upper limit to calculation performance, if the server has a very large number of simultaneous users.
Protecting your investment
Many spreadsheets contain business-critical information. In the wrong hands, the same information can be used to create extensive damage to your business.
More information
Still concerned about the difference between client-based and server-based calculations? Just interested in the technical details? No problem.
Read the technical details about client-based and server-based calculation here.
Historical product and edition information
The following original website wording describes earlier releases or services. It is retained for reference and does not describe current v12 availability or licensing.
SpreadsheetConverter creates web pages that mimic the behavior of Excel spreadsheets. Depending on the requirements, the calculation of the formulas in the spreadsheet can be performed either in the web browser or on a web server. The converted web page itself looks exactly the same regardless of what flavor of SpreadsheetConverter you used to create it.
Read more about the HTML flavor.
Decide if you need the Standard or Professional edition.
Download and test SpreadsheetConverter for free for 30 days.
SpreadsheetConverter iPhone/Android is a specialized app-builder that converts an Excel spreadsheet for iPhone and Android smartphones. Mobile calculators can be used also when the smartphone is offline, and your electronic forms are automatically stored until the phone is online again.
Read more about the iPhone/Android flavor.
Decide if you need the Standard or Professional edition.
Download and test SpreadsheetConverter for free for 30 days.
Use the iPhone/Android flavor to fully utilize touch screens.
Use the HTML flavor for a responsive design that adapts to the width of each screen.
Connect the form to our forms processing options – receive each form by e-mail, or saved in a database hosted by us for later retrieval. No programming or IT skills needed.
The web page can only be used with the kind of server environment it was created for, e.g. a web server capable of running Node.js code.
Decide if you need the Standard or Professional edition.
Download and test SpreadsheetConverter for free for 30 days.
In our server-based flavors like Node.js, the formulas are executed directly on the web server, which makes them inaccessible to intruders. You can calculate your markups, interests or salary increases knowing that no-one can access the formulas or their values on the server.
Earlier marketing source wording (superseded by current trial behavior): Conversions are limited to the first 20 rows of the first worksheet .
Earlier website wording; current billing/service policy has not been verified: Paid plans are offered monthly or annually. You can cancel at any time; cancellation takes effect at the end of the current billing period. Purchases are processed by a Merchant of Record, which is the seller of record and collects any applicable VAT.