diff --git a/SpineViewer/Dialogs/ConvertFileFormatDialog.Designer.cs b/SpineViewer/Dialogs/ConvertFileFormatDialog.Designer.cs
index 49452bb..a5b8d32 100644
--- a/SpineViewer/Dialogs/ConvertFileFormatDialog.Designer.cs
+++ b/SpineViewer/Dialogs/ConvertFileFormatDialog.Designer.cs
@@ -320,6 +320,7 @@
             ShowInTaskbar = false;
             StartPosition = FormStartPosition.CenterScreen;
             Text = "骨骼文件格式转换";
+            Load += ConvertFileFormatDialog_Load;
             panel.ResumeLayout(false);
             tableLayoutPanel1.ResumeLayout(false);
             tableLayoutPanel1.PerformLayout();
diff --git a/SpineViewer/Dialogs/ConvertFileFormatDialog.cs b/SpineViewer/Dialogs/ConvertFileFormatDialog.cs
index 3076ed9..b73e7f5 100644
--- a/SpineViewer/Dialogs/ConvertFileFormatDialog.cs
+++ b/SpineViewer/Dialogs/ConvertFileFormatDialog.cs
@@ -26,6 +26,11 @@ namespace SpineViewer.Dialogs
             comboBox_Version.SelectedValue = Spine.Version.V38;
         }
 
+        private void ConvertFileFormatDialog_Load(object sender, EventArgs e)
+        {
+            button_SelectSkel_Click(sender, e);
+        }
+
         private void button_SelectSkel_Click(object sender, EventArgs e)
         {
             if (openFileDialog_Skel.ShowDialog() == DialogResult.OK)