Various data sources such as excel files, scripts, webpages, images, audio, and video files can be linked to model elements. For example, to link an excel file select the model element and choose the Add Link tool from the Item Tools > Appearance; the Add Link dialog box will be displayed. In this dialog box, specify the file name. Browse to the required excel file choosing the Browse button. Next, choose the Add button to specify the location in the model where the link will be displayed. Choose the OK button; the sheet will be linked and an icon will be displayed near the selected model element. Click on the icon to view the sheet. In the same way, you can link various data sources to the model element.