How do I create xls or xlsx files in c#

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Hi!

I've been searching for an example of how to create a xls file in C#. I have to use xls files for downstream compatibility.

What I have is daily reports pulled. I would like to combine them weekly/monthly into a single report(s).
all the files have the same headers and same type of data.

Is there a way to easily combine them? I can work out the when and whiles.

If someone is able to get me started that would be awesome.

I tried excellibrary but that doesn't seem to work with Excel 10.

Thanks!

Nick

Posted 29-Apr-14 12:21pm

Member 10654601

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Maciej Los 29-Apr-14 18:32pm

"I tried excellibrary but that doesn't seem to work with Excel 10." - is not informative at all!
Please, be more specific and provide more details about your issue. What have you done till now? Show your code!

Philippe Mori 29-Apr-14 19:51pm

If the people are using Office 2000, XP or 2003, they can install the compatibility pack and open XLSX files.

adriancs 29-Apr-14 21:04pm

This is one of the hottest question, most Frequently Asked Question. Perhaps someone should write an article "A Collection of Ways Existed in the World on How to Read/Write Excel in C#"

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Sergey Alexandrovich Kryukov · Answer 1 · 2014-04-29T12:29:00

I'm not sure you really need to create XLS and all its compatibility; this thing is too outdated. XLSX is easier to work with, because you could use Open XML SDK. Please see my past answer:
Microsot office Interop[^].

By they way, please read Microsoft discouraging articles on using Office Interop:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q257757#kb2[^],
http://support.microsoft.com/kb/257757/en-us[^].

Anyway, there are some alternatives. Please see my past answer and other answers referenced: How to add microsoft excel 15.0 object library from Add Reference in MS Visual Studio 2010[^].

See also this one, on Open XML: Creating basic Excel workbook with Open XML[^].

—SA