2007 Office System Driver Data Connectivity Components Link -

Ensure the account running your application has read/write permissions to the folder where the Office file resides.

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\myFolder\myOldExcelFile.xls;Extended Properties="Excel 8.0;HDR=YES"; 2007 office system driver data connectivity components link

If you're interested in learning more, here are some articles and resources: Ensure the account running your application has read/write

Here are some interesting articles and facts about these drivers: Extended Properties="Excel 8.0

(Note: This link directs to the official Microsoft servers. If the link is broken due to Microsoft retiring legacy pages, search the Microsoft Download Center for the Knowledge Base ID .)

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\Sales.xlsx;Extended Properties="Excel 12.0 Xml;HDR=YES";