Export To HTML Features
Also included is an HTML exporting engine that can convert any xls file to HTML.
While due to format limitations in HTML the output is not as detailed as the PDF output, it is very complete.
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Standards Compliant
FlexCel Generates fully standards compliant HTML files, in HTML 4.01, 5 or XHTML 1.0. You can verify their compliance at the link below:
http://validator.w3.org/
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Browser Compatible
Tested with Internet Explorer 6 and up, FireFox, Opera, Chrome and Safari
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No JavaScript
All dynamic effects are done with CSS, and JavaScript is not used anywhere in the generated pages. This means the files can be used in secure environments where JavaScript is not enabled.
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MHTML Support
Files can be saved as fully compliant MHTML format, which can be used to email the file.
An MHTML file stores all images inside a single file, and it is compatible with the option “Save as web page, single file” in Internet Explorer. A demo is included showing how to email an exported html file.
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Outlook 2007 support
Outlook 2007 uses a non standard rendering engine to show HTML email (Word 2007 engine), and it is not capable of showing images in absolute positions. FlexCel offers a fix for this, allowing to include equivalent VML commands that will be ignored by other HTML mail readers, but will make Outlook 2007 output look fine.
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Rich Formatting Support
While not as complete as the PDF export, most things are included in the generated HTML file. This includes hyperlinks, images, charts, wordart, conditional formats, merged cells, and more. Even Page breaks are exported in browsers that support them( IE and FireFox)
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Vertical  Text
Even when there is no direct support for rotated text in HTML, FlexCel gives you the option to convert vertical text in Excel to images in the HTML file, at your choice. So those tables with vertical headings will look as they should.
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Fully customizable sheet tabs
FlexCel offers the option to export a single sheet in a workbook into an html file, all the sheets in one file or all the sheets as tabs. When exporting as tabs, you can choose their position (at the top, at the left, at the right or at the bottom) and fully customize their style.
You can customize simple things (like the tab color), more complex things (by changing the CSS styles on the tabs) or completely define your own tabs by creating a descendant class.
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Resolution Independent
All objects and font sizes in the generated files are in relative units, making sure they render consistently in different browsers, operating systems and when printing. Also the files scale properly (including images) when the user changes the DPI settings in his machine. (For example to large fonts)
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Native ASP.NET viewer component
We include a component “FlexCelASPViewer” that can be used in ASP.NET applications and will show an Excel file as HTML inside your application. You just need to drop a FlexCelASPViewer in a form, set its properties, and you can see any Excel file directly in your browser, converted to HTML.
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We eat our own dog food
Normally a good sign that a company cares about their products is if they use them themselves. And as a matter of fact, this very document you are reading was created using FlexCel.
We created this list with FlexCel Reports, and converted it to HTML using FlexCel. This way, we get standards compliant markup and a much cleaner HTML than the one we would get by exporting to HTML directly from Excel. As a plus, it also works in any modern browser.
Using FlexCel allows us to automate our building system and customize the generated output.
You can find the source of the Application in the "Features Page" demo included in FlexCel. You can also see this file as xls and pdf here:
Original Excel file
Excel File converted to PDF with FlexCel
And more…
This is just a look at the surface. Many other things are included, so it is probably a good time now to take a look.