Programmatically open workbooks

The Workbooks collection in Microsoft Office Excel makes it possible to work with all open workbooks and to open workbooks.

Applies to: The information in this topic applies to document-level projects and VSTO Add-in projects for Excel. For more information, see Features available by Office application and project type.

To open an existing workbook

1. Use the Open method of the Workbooks collection, passing in the path to the workbook.

   • C#
   • VB

   this.Application.Workbooks.Open(@"C:\Test\YourWorkbook.xlsx");
   

Compile the code

This code example requires the following:

• A workbook named YourWorkbook.xls must exist in a directory named Test on drive C.

Related content

• Work with workbooks
• How to: Programmatically open text files as workbooks
• How to: Programmatically create new workbooks
• How to: Programmatically save workbooks
• How to: Programmatically close workbooks
• Programmatic limitations of host items and host controls
• Optional parameters in Office solutions
• Host items and host controls overview