Supported Html elements by Excel

Question

Recently I found out that if you save some html markup as an xls it will open up in Excel just fine with all your styling. Example

myfile.xls

<table>
        <tr>
            <td style="background: red;text-align:center;border:1px solid;"><h1>Blah</h1></td>
            <td style="background: red;text-align:left;font-weight:bold;">Blah</td>
        </tr>
        <tr>
            <td>3221312dsdasd</td>
            <td>hahah2123dedaah</td>
        </tr>
        <tr>
            <td>123456</td>
            <td>hahah2123dedaah</td>
        </tr>
</table>

I was wondering if there is any kind of documentation on this about what html and CSS Excel supports and what it doesn't? I tried using Google and really couldn't find much. I was mostly interested in creating multiple worksheets.

Answer 1

For some in-depth information regarding the HTML approach to creating Excel files with sample code see http://www.c-sharpcorner.com/UploadFile/kaushikborah28/79Nick08302007171404PM/79Nick.aspx

Also checkout the official documentation at http://msdn.microsoft.com/en-us/library/Aa155477%28office.10%29.aspx

Other options to create Excel files:

MS provides the OpenXML SDK V 2.0 - see http://msdn.microsoft.com/en-us/library/bb448854%28office.14%29.aspx

This can read+write MS Office files (including Excel).

Another option see http://www.codeproject.com/KB/office/OpenXML.aspx

IF you need more like rendering, formulas etc. then there are different free and commercial libraries like ClosedXML, EPPlus, Aspose.Cells, SpreadsheetGear, LibXL and Flexcel etc.