http://www.codeplex.com/ExcelPackage/Release/ProjectReleases.aspxExcelPackage Reviews Rss Descriptionhttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-thiwankaRated 2 Stars (out of 5) - GPL make me not to use this (: thiwankaWed, 19 Sep 2012 09:07:24 GMTReviewed: 1.0.0.1 Production (Sep 19, 2012) 20120919090724Ahttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-ratnakarduttRated 2 Stars (out of 5) - It's working for reading and writing. but it's dead slow.
I tested writing 1000 rows with 5columns. Means 5000 Cells.
I tool 11.7455057 seconds. To write big files, it's taking hours.
So I personally may not suggest for real time where you would need to handle huge files.ratnakarduttTue, 03 Jan 2012 06:56:21 GMTReviewed: 1.0.0.1 Production (Jan 02, 2012) 20120103065621Ahttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-UncleMikeRated 2 Stars (out of 5) - I tried this, but it didn't work for me, so in the end, I wrote my own open-source version. 

You can download the full source code from the following site:
http://www.mikesknowledgebase.com/pages/CSharp/ExportToExcel.htm
UncleMikeWed, 23 Nov 2011 14:30:28 GMTReviewed: 1.0.0.1 Production (Nov 23, 2011) 20111123023028Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-lsadam0Rated 1 Stars (out of 5) - Works great, but unusable for me because of GPL. What's the point of a .NET GPL library?lsadam0Tue, 22 Nov 2011 15:42:36 GMTReviewed: 1.0.0.1 Production (Nov 22, 2011) 20111122034236Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-kvsekharRated 2 Stars (out of 5) - Hi ,
Any one knows how to export HTML content to .XLSX file using Office Open XML ?kvsekharMon, 14 Nov 2011 13:17:01 GMTReviewed: 1.0.0.1 Production (Nov 14, 2011) 20111114011701Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-kvsekharRated 2 Stars (out of 5) - Any one knows how to export HTML content to .XLSX file using Office Open XML.kvsekharMon, 14 Nov 2011 13:16:41 GMTReviewed: 1.0.0.1 Production (Nov 14, 2011) 20111114011641Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-UncleMikeRated 2 Stars (out of 5) - I tried this, but it didn't work for me, so in the end, I wrote my own version. 

You can download the full source code from the following site:
http://www.mikesknowledgebase.com/pages/CSharp/ExportToExcel.htm
UncleMikeThu, 27 Oct 2011 12:18:45 GMTReviewed: 1.0.0.1 Production (Oct 27, 2011) 20111027121845Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-alexterraRated 1 Stars (out of 5) - This works perfectly to me, but GPL is out of question.
There is no sense in build a .NET component under GPL dude.
Maybe if work with perl or ruby...
RgdsalexterraMon, 24 Oct 2011 22:20:31 GMTReviewed: 1.0.0.1 Production (out 24, 2011) 20111024102031Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-alexterraRated 1 Stars (out of 5) - This works perfectly to me, but GPL is out of question.
There is no sense build .NET components in GPL dude.
Maybe if work with perl or ruby...
RgdsalexterraMon, 24 Oct 2011 22:20:02 GMTReviewed: 1.0.0.1 Production (out 24, 2011) 20111024102002Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-flakeRated 4 Stars (out of 5) - Looking good ... but I am not sure what was made impossible by the fact it is GPL?flakeFri, 16 Sep 2011 01:28:46 GMTReviewed: 1.0.0.1 Production (Sep 15, 2011) 20110916012846Ahttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-eisiWareRated 4 Stars (out of 5) - Very Good Library, but us would be much better served where it LGPLeisiWareWed, 10 Aug 2011 11:49:10 GMTReviewed: 1.0.0.1 Production (Aug 10, 2011) 20110810114910Ahttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-punitganshaniRated 1 Stars (out of 5) - Unusable due to GPL.. Is it a study/reference API/application?punitganshaniWed, 11 May 2011 15:11:49 GMTReviewed: 1.0.0.1 Production (May 11, 2011) 20110511031149Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-locomotive223Rated 5 Stars (out of 5) - Very good ! Viva GPL !locomotive223Thu, 20 Jan 2011 14:51:30 GMTReviewed: 1.0.0.1 Production (gen 20, 2011) 20110120025130Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-bleonardoRated 4 Stars (out of 5) - Great lib... But GPL makes it unusablebleonardoFri, 08 Oct 2010 15:30:12 GMTReviewed: 1.0.0.1 Production (Oct 08, 2010) 20101008033012Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-bnice7Rated 4 Stars (out of 5) - Just to clarify the comments on GPL&#59; You are totally allowed to freely use the code as you please. But, IF you supply a public release of your project, THEN you must include the source code (or at least make it accessible).

http://www.gnu.org/licenses/gpl-faq.html#GPLRequireSourcePostedPublic
bnice7Fri, 08 Oct 2010 02:10:31 GMTReviewed: 1.0.0.1 Production (Oct 07, 2010) 20101008021031Ahttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-tantawiegRated 5 Stars (out of 5) - Thank ou very much, i was looking for this long agotantawiegMon, 12 Jul 2010 11:35:42 GMTReviewed: 1.0.0.1 Production (Jul 12, 2010) 20100712113542Ahttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-mott555Rated 2 Stars (out of 5) - Overall it's a useful utility, though working with styles is not very intuitive.

However, the GPL license makes it totally unusable at my company. Wouldn't be an issue if it was LGPL. For people who don't know: GPL license means to legally use this, your software which uses this library must be released as GPL-licensed open source software.mott555Tue, 22 Jun 2010 19:04:13 GMTReviewed: 1.0.0.1 Production (Jun 22, 2010) 20100622070413Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-koshinaeRated 5 Stars (out of 5) - Finally, a GPL'd xlsx writer :)
koshinaeMon, 07 Jun 2010 12:49:32 GMTReviewed: 1.0.0.1 Production (jún. 07, 2010) 20100607124932Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-cdc5205Rated 2 Stars (out of 5) - This is currently buggy and it needs a little work. check out EPPlus which is built upon this with added features and its still maintained. cdc5205Fri, 07 May 2010 18:47:35 GMTReviewed: 1.0.0.1 Production (May 07, 2010) 20100507064735Phttp://excelpackage.codeplex.com/releases/view/1456#ReviewBy-Markus86Rated 1 Stars (out of 5) - GPL... :-|Markus86Fri, 16 Apr 2010 07:17:27 GMTReviewed: 1.0.0.1 Production (Apr 16, 2010) 20100416071727A