Imports GdPicture14 Public Class frmDocViewPure Private Sub frmDocViewPure_Load(sender As Object, e As EventArgs) Handles MyBase.Load SpreadsheetControl1.LoadDocument("E:\35MB.xlsx") End Sub Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click 'SpreadsheetControl1.Document.Dispose() 'SpreadsheetControl1.Dispose() 'SpreadsheetControl1 = Nothing SpreadsheetControl1.CreateNewDocument() GC.Collect() End Sub End Class