https://github.com/OfficeDev/Open-Xml-Sdk
Install-Package DocumentFormat.OpenXml
https://github.com/OfficeDev/Open-Xml-Sdk
Install-Package DocumentFormat.OpenXml
this.richTextBox2.SelectionStart=this.richTextBox2.Text.Length; this.richTextBox2.ScrollToCaret();
public partial class MyMessageBox : Window { public static void Show(string strErrorInfo) {