Cannot connect to excel from c#

Question

I want to connect to a .xlsx file from my ASP.NET application.

Here is my connection string:

string connString = "Provider=Microsoft.ACE.OLEDB.12.0;Driver={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};Data Source=\"C:\\MyExcel.xlsx\";Extended Properties=\"Excel 12.0 Xml;HDR=NO\"";

OleDbConnection oleConnection = new OleDbConnection(connString);

But when I try to open the connection I get Could not find installable ISAM

• Office version: 2007
• OS: windows 7 64 bit
• .NET framework 4.0
• Downloaded the 32 bit ACE driver from http://www.microsoft.com/en-us/download/details.aspx?id=13255

I even changed the platform target of my app to x86 but no success.

Please help!

Answer 1

Change the connection string to:

"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=\"C:\\MyExcel.xlsx\";Extended Properties=\"Excel 12.0 Xml;HDR=NO\"";

The Driver=... part is required when you are connecting using ODBC driver. When connecting using OLEDB, specifying the Provider is sufficient. Refer to this page for more information.