如何使用MVVM访问WPF应用程序中另一个ViewModel中的一个ViewModel对象

I am using mvvm pattern in WPF application and not using any database. I stuck in to problem where I have a view UploadView in which user uploads some excel file and its view model named as UploadViewModel in this I read uploaded files data and keeps it in some datatable object which is UploadvViewModals class's object and it is working fine but my problem is that now I have to display uploaded data(datatable object) it on some another view in a some ItemsControl having different Viewmodal. Being a newbie in WPF and windows.I dont know how to proceed. What are the possible ways to do this?I am using mvvm pattern in WPF application and