diff --git a/RhSolutions.AddIn/Controllers/RibbonController.cs b/RhSolutions.AddIn/Controllers/RibbonController.cs
index efc0d15..c815229 100644
--- a/RhSolutions.AddIn/Controllers/RibbonController.cs
+++ b/RhSolutions.AddIn/Controllers/RibbonController.cs
@@ -27,6 +27,7 @@ public class RibbonController : ExcelRibbon
                 <button id='export' getEnabled='GetExportEnabled' label='Экспорт в новый файл' size='normal' imageMso='PivotExportToExcel' onAction='OnToolPressed'/> 
                 <button id='convert' getEnabled='GetConvertEnabled' label='Актуализировать' size='normal' imageMso='FileUpdate' onAction='OnToolPressed'/> 
                 <button id='merge' label='Объединить' size='normal' imageMso='Copy' onAction='OnToolPressed'/> 
+                <button id='dxfexport' getEnabled='GetDxfEnabled' label='Экспортировать в DXF' size='normal' imageMso='ExportExcel' onAction='OnToolPressed'/>
             </group>
             <group id='rausettings' getLabel='GetVersionLabel'>
                 <button id='setPriceList' getLabel='GetPriceListPathLabel' size='large' imageMso='TableExcelSpreadsheetInsert' onAction='OnSetPricePressed'/>
@@ -68,6 +69,7 @@ public class RibbonController : ExcelRibbon
                 "export" => new ExportTool(),
                 "convert" => new ConvertTool(),
                 "merge" => new MergeTool(),
+                "dxfexport" => new DxfTool(),
                 _ => throw new Exception("Неизвестный инструмент"),
             };
             tool.Execute();
@@ -108,6 +110,18 @@ public class RibbonController : ExcelRibbon
         }
     }
 
+    public bool GetDxfEnabled(IRibbonControl control)
+    {
+        if (RhSolutionsAddIn.Excel.ActiveWorkbook == null)
+            return false;
+
+        else
+        {
+            Worksheet worksheet = RhSolutionsAddIn.Excel.ActiveWorkbook.ActiveSheet;
+            return worksheet.IsValidSource();
+        }
+    }
+
     public string GetVersionLabel(IRibbonControl control)
     {
         string version = Assembly.GetExecutingAssembly().GetName().Version.ToString();
diff --git a/RhSolutions.AddIn/Tools/EventsUtil.cs b/RhSolutions.AddIn/Tools/EventsUtil.cs
index 4bd6b89..99f435f 100644
--- a/RhSolutions.AddIn/Tools/EventsUtil.cs
+++ b/RhSolutions.AddIn/Tools/EventsUtil.cs
@@ -17,6 +17,7 @@ namespace RhSolutions.Tools
         {
             RhSolutionsAddIn.Excel.SheetSelectionChange += RefreshExportButton;
             RhSolutionsAddIn.Excel.SheetActivate += RefreshConvertButton;
+            RhSolutionsAddIn.Excel.SheetActivate += RefreshDxfButton;
             RhSolutionsAddIn.Excel.WorkbookActivate += RefreshConvertButton;
             RhSolutionsAddIn.Configuration.OnSettingsChange += RefreshSettingTitle;
         }
@@ -25,6 +26,7 @@ namespace RhSolutions.Tools
         {
             RhSolutionsAddIn.Excel.SheetSelectionChange -= RefreshExportButton;
             RhSolutionsAddIn.Excel.SheetActivate -= RefreshConvertButton;
+            RhSolutionsAddIn.Excel.SheetActivate -= RefreshDxfButton;
             RhSolutionsAddIn.Excel.WorkbookActivate -= RefreshConvertButton;
             RhSolutionsAddIn.Configuration.OnSettingsChange -= RefreshSettingTitle;
         }
@@ -34,6 +36,11 @@ namespace RhSolutions.Tools
             RibbonController.RefreshControl("convert");
         }
 
+        private static void RefreshDxfButton(object sh)
+        {
+            RibbonController.RefreshControl("dxfexport");
+        }
+
         private static void RefreshExportButton(object sh, Range target)
         {
             RibbonController.RefreshControl("export");