Public Sub CopyValues()
Dim wb_src As Workbook
 Dim wb_dst As Workbook
 Dim ws_src As Worksheet
 Dim ws_dst As Worksheet
Set wb_src = Workbooks.Open("C:\Users\User-005\Desktop\a.xlsx")
Set wb_dst = Workbooks.Open("C:\Users\User-005\Desktop\b.xlsx")
 Set ws_src = wb_src.Sheets(1)
 Set ws_dst = wb_dst.Sheets(1)
Dim data() As Variant
 Dim r_src As Range
 Dim r_dst As Range
 Set r_src = ws_src.Range("A1").Resize(1000, 6)
 Set r_dst = ws_dst.Range("A1").Resize(1000, 6)
data = r_src.Value2
 r_dst.Value2 = data
End Sub