We cannot locate a server to load the workbook Data Model.

Problem Description:

Assume that you use an Analysis Services source to create a PivotTable in Microsoft Excel 2013. You upload the Excel Workbook to a Microsoft SharePoint site.

When you try to either refresh the PivotTable or filter the data in the PivotTable, you receive the following error message:

We cannot locate a server to load the workbook Data Model.

Probable cause:

This issue occurs because the Analysis Services instance has not been configured in the Central Administration site.

Workaround/Resolution:

1.    To work around this issue, configure the Excel Services service application on the SharePoint server. To do this, follow these steps:

2.    In the Application Management section of the Central Administration home page, click Manage service applications.

3.    On the Manage Service Applications page, click the Excel Services service application that you want to configure.

4.    On the Manage Excel Services page, click Data Model.

5.    Click Add Server.

6.    In the Server Name box, type the name of the Analysis Services instance that you want to add.

7.    Click Ok.

If you have any queries/questions regarding the above mentioned information then please let me know. I would be more than happy to help you as well as resolves your issues J