How to open Excel XLS file in C#.net

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C#

ASP.NET

can anybody answer how to open and read uploaded Excel file and show that file on the web page in C# in the web form.

Posted 1-Sep-11 22:25pm

nangloulaing

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4 solutions

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koolprasad2003 · Accepted Answer · 2011-09-01T23:05:00

Open and Read XLS cellwise, follow steps
1. give the reference of Interop.Excel object from COM tab
2. write following code in your project

C#

Excel.Workbook theWorkbook = ExcelObj.Workbooks.Open(
    openFileDialog1.FileName, 0, true, 5,
     "", "", true, Excel.XlPlatform.xlWindows, "\t", false, false,
     0, true);
Excel.Sheets sheets = theWorkbook.Worksheets;
Excel.Worksheet worksheet = (Excel.Worksheet)sheets.get_Item(1);
for (int i = 1; i <= 10; i++)
{
   Excel.Range range = worksheet.get_Range("A"+i.ToString(), "J" + i.ToString());
   System.Array myvalues = (System.Array)range.Cells.Value;
   string[] strArray = ConvertToStringArray(myvalues);
}

Prerak Patel · Accepted Answer · 2011-09-01T22:28:00

Solution 1

Display MS Excel Sheets and Charts in ASPX Pages using C#[^]
http://support.microsoft.com/kb/306572[^]

Posted 1-Sep-11 22:28pm

Prerak Patel

Updated 1-Sep-11 22:29pm

v2

Comments

Oshtri Deka 2-Sep-11 6:51am

Good starting point.

nangloulaing 6-Sep-11 0:18am

Thanks.. I just getting started with this field and i need lots of helps..

Prerak Patel 6-Sep-11 1:08am

You are welcome

RaisKazi · Accepted Answer · 2011-09-01T22:45:00

Solution 2

Try as below code.

C#

string excelFilePath = "YourExcelFilePath";
System.IO.FileInfo file = new System.IO.FileInfo(excelFilePath);

  if (file.Exists)
  {
    Response.Clear();
    Response.AddHeader("Content-Disposition", "attachment; filename="  +      file.Name);
    Response.AddHeader("Content-Length", file.Length.ToString());
    Response.ContentType = "application/octet-stream";
    Response.WriteFile(file.FullName);
    Response.End();
  }

Posted 1-Sep-11 22:45pm

RaisKazi

Comments

Vijaya Sekhar Sreeram 7-Mar-13 22:54pm

so much thanks friend really helpfull code thank you so much..........

TutuRanjan 27-Jul-13 2:46am

process.start("Excels",""" fileName""")
Open excel file

RaisKazi 14-Mar-13 17:35pm

Glad to know it helped you!

Philippe Mori · Accepted Answer · 2011-09-03T03:00:00

If you want to read the data from an uploaded file, then you can uses Open XML SDK 2.0[^]

For read access, it should works very well.

For creating or modifying document it might be hard to use properly compared to most other alternative as it is very low level (you have to know a lot of details to generate a valid file).

How to open Excel XLS file in C#.net

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