How to read xls file using c#

Active 1 year, 1 month ago. Viewed k times. Improve this question. TutuGeorge TutuGeorge 1, 2 2 gold badges 20 20 silver badges 41 41 bronze badges. Can the convertion of excel to csv through code be done even if we dont have ms excel installed???

No you don't need Excel installed to use OleDb. However if your Excel file is an xlsx kind of file you need the more recent Microsoft Data Access component freely available for download — Steve. Why isn't anyone referencing any of the libraries mentioned in the following link?

Show 1 more comment. Active Oldest Votes. Just an example Of course you don't need Office installed on the target machine. Improve this answer. Community Bot 1 1 1 silver badge. Steve Steve k 21 21 gold badges silver badges bronze badges. I get an exception with the code. It is the name of a worksheet in your excel file. My Excel file contains a merged cell having multiline text.

This approach reads only part of the text i. Could you please help me? And remember the chars limit So, let's get started with it. Comment Comment's. Steven P Very useful and awesome post. Add Comment. Login or Register to comment. Related Articles I hope that gets you started, let me know if you need further clarification. I'll post a complete. To be frank, this stuff is much easier if you use VB.

It's in C because I didn't write it. NET does option parameters well, C does not, hence the Type. Once you typed Type. Missing twice in a row, you run screaming from the room! Here is another example inspired by this site :. I'm one of those weird people who enjoys learning COM automation.

Why don't you create OleDbConnection? There are a lot of available resources in the Internet. Here is an example.

First of all, it's important to know what you mean by "open an Excel file for reading and copy it to clipboard This is very important because there are many ways you could do that depending just on what you intend to do. Let me explain:. If you want to read a set of data and copy that in the clipboard and you know the data format e.

If you want to do operations on the data with the Excel object model then open it in the way you began. Some time it's possible to treat an xls file as a kind of csv file, there are tools like File Helpers which permit you to treat and open an xls file in a simple way by mapping a structure on an arbitrary object.

I have, unfortunately I say, a strong experience working with Office automation in all ways, even if bounded in concepts like Application Automation, Data Management and Plugins, and generally I suggest only as the last resort, to using Excel automation or Office automation to read data; just if there aren't better ways to accomplish that task. Working with automation could be heavy in performance, in terms of resource cost, could involve in other issues related for example to security and more, and last but not at least, working with COM interop it's not so "free"..

So my suggestion is think and analyze the situation within your needs and then take the better way. The Output data will be stored in dataset, using the dataset object you can easily access the datas. Hope this may helpful. Here's a answer - if you don't need to support the older. Use Open XML. Here is some code to process a spreadsheet with a specific tab or sheet name and dump it to something like CSV.

I chose a pipe instead of comma. I wish it was easier to get the value from a cell, but I think this is what we are stuck with. That is what Microsoft recommends. I tried it with Monodevelop in Unity3D and it is pretty straight forward.

Check this sample code to see how the library works:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more.

How to read data of an Excel file using C? Ask Question. Asked 12 years, 10 months ago. Active 1 year, 10 months ago. Viewed k times. FileInfo finfo; Excel. ApplicationClass ; ExcelObj. Workbook theWorkbook; Excel. Worksheet worksheet; if listView1.

Text ; if finfo. Open s. Text, 0, true, 5, "", "", true, Excel. Worksheet theWorkbook. Activate ; worksheet. Improve this question.

Community Bot 1 1 1 silver badge. New users coming for a solution might want to see this thread. Add a comment. Active Oldest Votes. OK, One of the more difficult concepts to grasp about Excel VSTO programming is that you don't refer to cells like an array, Worksheet[0][0] won't give you cell A1, it will error out on you.

Here's an example: Excel. Sheets["Sheet1"] as Excel. There are lot of opportunities from many reputed companies in the world. Chances are you will need to prove that you know how to work with. Net Programming Language. These C Interview Questions have been designed especially to get you acquainted with the nature of questions you may encounter during your interview for the subject of.

Net Programming. Here's a comprehensive list of. Net Interview Questions, along with some of the best answers. These sample questions are framed by our experts team who trains for. Net training to give you an idea of type of questions which may be asked in interview. Go to C Interview Questions. Home C VB. How to read an Excel file using C The following program illustrates how to open an existing Excel spreadsheet in C using.