Copy random 25 files from 1300 to another folder with VBA

I have 1300 excel files on a server, with revenues in them. I need to compare these revenues with one pivot file to make sure the revenues are the same in the actual 2 files. Because it is on a server, opening all of them from a server would be pretty slow, thats why I want to copy a sample of them (25 excel files) to my compter first, and then run my comparison macro from this folder. But I want to make the copying process automatized, so I somehow need to select randomly 25 of these files, and then copy it to an other folder. I have a code to copy all of the files from one folder to another, but I need the random selection to it. Thanks.

 Sub Copy_Folder()

 Dim FSO As Object
    Dim FromPath As String
    Dim ToPath As String
FromPath = "C:\Users\NagyI2\Documents\Macro testing"
ToPath = "C:\Users\NagyI2\Documents\Copy test"

If Right(FromPath, 1) = "\" Then
    FromPath = Left(FromPath, Len(FromPath) - 1)
End If

If Right(ToPath, 1) = "\" Then
    ToPath = Left(ToPath, Len(ToPath) - 1)
End If

Set FSO = CreateObject("scripting.filesystemobject")

If FSO.FolderExists(FromPath) = False Then
    MsgBox FromPath & " doesn't exist"
    Exit Sub
End If

FSO.CopyFolder Source:=FromPath, Destination:=ToPath

End Sub