OleDB Connection string for reading an Excel file exclusively opened by other user

Can anyone tell me OleDB Connection string to be used for just reading an Excel file exclusively opened by other user?

I tried following connection string which did not work for me:-

"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Mode=Read;Extended Properties=\"Excel 8.0;HDR=YES;ReadOnly=true;\"";

This connection string throws following exception when is it opened by other user:-

The Microsoft Jet database engine cannot open the file ''. It is already opened exclusively by another user, or you need permission to view its data.


  1. Excel file is kept on share so that multiple users can open it.
  2. Provider used:- Microsoft.Jet.OLEDB.4.0
  3. Excel file type:- MS Excel 97-2003 Worksheet
  4. Copying a file is NOT allowed


I would suggest that you use a background thread to retry opening a connection on an interval for some time, and when you get a connection to the excel datasource, read all your data into memory and immediately close the connection, so that other processes can access the file.

Category:oledb Time:2011-05-02 Views:1

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