Microsoft.ACE.OLEDB.12.0Xlsx files
Connect to Excel 2007 (and later) files with the Xlsx file extension. That is the Office Open XML format with macros disabled.
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=c:\myFolder\myExcel2007file.xlsx;
Extended Properties="Excel 12.0 Xml;HDR=YES";
Connecting
This connection string (Xlsx files using Microsoft.ACE.OLEDB.12.0) can be used for connections to Excel 2007, Excel 2010 and Excel 2013.
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"HDR=Yes;" indicates that the first row contains columnnames, not data. "HDR=No;" indicates the opposite.