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Convert XLS to Flash
Try a completely new product! Generate a single, complete, stand-alone Flash file from your .xls(x)

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Offer: Try the Advanced Submit Service for Free
You can try the Advanced Submit Service for free for 2 weeks. Just select it in the SpreadsheetConverter conversion wizard.
If you continue to use it after that, the license fee is $15/month.

Create your ASP.NET calculator or form with Excel

The SpreadsheetConverter add-on to Microsoft Excel lets you automatically convert Excel spreadsheets to live web pages, with all calculations performed by separate server components running in the Internet Information Server (IIS) on any Windows server.

A classic disadvantage of moving workload to a server is that the user is forced to enter all information at once, press a "send" button, then wait until the server responds. With the new version 5 of SpreadsheetConverter to ASP.NET, the browser can communicate each little change separately to the server with asynchronous JavaScript and XML (AJAX).

While the user moves on to edit the next field in the form, the server dynamically instructs the browser to update any fields or charts that were affected by the previous data entry. This enables the browser to provide near-instantaneous responses, while still fully exploiting the remote ASP.NET server.

Free offer: Send us a spreadsheet and we'll send it back as a web page.

Photo of a group that use SpreadsheetConverter with ASP.NET

Creating advanced ASP.NET files without effort

SpreadsheetConverter to ASP.NET is the perfect tool for creating calculating web forms and web pages that behave just like spreadsheets.

  • It's so easy to change: Just change the spreadsheet and re-run the conversion, and you can open the resulting ASP.NET file directly.
  • There are no errors: The calculator doesn't need any testing, since thousands of users already have tested our calculation engine.
  • The formulas are protected: All calculations are done inside the ASP.NET file, so your formulas are invisible to the user.
  • It's free to distribute: With the Professional Edition, you can make the calculator part of a product that you sell.
  • You get the source code: The ASP.NET server code is completely self-contained. There are no library files or other external requirements.

It's so easy, you can do it yourself!

SpreadsheetConverter makes your web site stand out from the competition. It's so easy to put any existing form or calculator on the web: expense reports, surveys, quote generators, order forms, reservation forms, employment application, financial calculators, engineering tools - the list is endless.

The free form-to-Inbox service requires no installation, no programming skills and no configuration. Once you upload your first web form to your server, submitted forms start arriving at your Inbox. You are up and running within minutes. For a small monthly fee, we store submitted forms in a database for you until you visit our server to pick them up.

Keep your web form current with little effort

Business rules frequently change, e.g. new prices, new discount options, new regulations etc. With hand-crafted web pages it's hard to keep up with the frequent changes. With SpreadsheetConverter, you just change the spreadsheet, and regenerate the web page.

Normally, it takes a lot of time to make a web page look this well-designed. With Excel you just format the page the way you like. SpreadsheetConverter creates a web page that looks the same: borders, colors, fonts, checkboxes, dropdown lists etc work as they should, and numbers are formatted on the fly with decimals, thousand separators and currency symbols.

Charts are also live and update dynamically as you change the fields in the web page. Use calendars to select dates, stars to set ratings and sliders to vary data in real-time. Design step-by-step wizards for complex forms or calculators. You can play with new layouts inside Excel before you convert them to web format, which saves lots of time (besides being lots of fun).

Download beta version 5.2.1

Download the Standard Edition for Excel 2000-2010

Download the Professional Edition for Excel 2000-2010

Example: a simple body mass index calculator

An example of a BMI calculator converted to ASP.NET by SpreadsheetConverter

Example: Simple home loan calculator with slider and live chart

An example of a calculator with charts converted to ASP.NET by SpreadsheetConverter

More examples

Here you can see our Examples collection converted to ASP.NET:

View the complete set of samples

Fast calculation with prefabricated components

Creating a calculating web page like an expense report or order form online can be very difficult. Programming, testing and debugging takes a lot of time even for a specialist. Most online calculators do all their calculation on the web server, which makes the web page slow because of all the network communication with the server.

With SpreadsheetConverter, all your spreadsheet formulas are automatically converted into program code by SpreadsheetConverter, using prefabricated components that have been meticulously tested. The conversion to web format retains the interactivity that is typical of a spreadsheet, and the entire visual layout is carried over to the web page.

Our basic product converts Excel spreadsheets to HTML with embedded JavaScript that can be used with any web server. Charts are converted to Flash animations that automatically update when the data in the web form or calculator is changed.

In the ASP.NET version, all calculations are performed on the server by separate ASP.NET or classic ASP modules, freeing the browser from the workload required to do all the computations. This enables the browser to handle complex user interface logic even for very large web pages. Since a portion of the web page resides on the server, it's much easier to fetch data in a database, e.g. the current interest rate, or interact with other server applications.

The new version 5 adds many new user interface features like calendars, sliders and ratings. Several new chart types are supported and the formatting options have been extended. A new data entry wizard uses Next and Previous buttons to allow the visitor to advance step-by-step through a form.

Superior support

We guarantee top-notch support. Technically competent support engineers are here to answer your e-mails. They are all programmers and web developers. You should get answers by the next business day, often within the hour. Free e-mail support for six months is included with every purchase.

SpreadsheetConverter is a mature product. SpreadsheetConverter has been for sale since 2002. We constantly add new value to the product. If you buy version 5.2, all 5.x updates are included in the price. If we release a new version within six months of your purchase, you get the upgrade for free.

Let us convert a spreadsheet for you, right now!

Let us convert one of your Excel spreadsheets to a live web form or calculating web page. Just e-mail us one of your spreadsheets now and we'll do it for you. It's so simple, we'll even do it for free! Once you see the impressive result, you'll want to download the program and try for yourself.

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