Auto detect file encoding when downloading tfs files

Question

I am downloading TFS files by creating workspace as follows

   Workspace newWorkspace = verControlServer.CreateWorkspace(workspaceName, 
   verControlServer.AuthorizedUser); 
   //some extra code here 

After this i am mapping files to local folder. As follows. //some more code lines here Localpath = workspaceName.GetLocalItemForServerItem(ServerItem);

If any of the TFS files contains other language characters such as chinese then i get "????" in the file which i am unable to run using powershell. Is there a way to find the file encoding for the files downloaded using TFS APIs.