diff --git a/packages/x-data-grid-premium/src/hooks/features/export/serializer/setupExcelExportWebWorker.ts b/packages/x-data-grid-premium/src/hooks/features/export/serializer/setupExcelExportWebWorker.ts
index 1a1440225c41e..b5c0dff866cff 100644
--- a/packages/x-data-grid-premium/src/hooks/features/export/serializer/setupExcelExportWebWorker.ts
+++ b/packages/x-data-grid-premium/src/hooks/features/export/serializer/setupExcelExportWebWorker.ts
@@ -14,6 +14,7 @@ export function setupExcelExportWebWorker(
   // eslint-disable-next-line no-restricted-globals
   addEventListener('message', async (event: MessageEvent<ExcelExportInitEvent>) => {
     const {
+      namespace,
       serializedColumns,
       serializedRows,
       options,
@@ -23,6 +24,11 @@ export function setupExcelExportWebWorker(
       columnGroupPaths,
     } = event.data;
 
+    // workers share the pub-sub channel namespace. Use this property to filter out messages.
+    if (namespace !== 'mui-x-data-grid-export') {
+      return;
+    }
+
     const { exceljsPostProcess, exceljsPreProcess } = workerOptions;
 
     const excelJS = await getExcelJs();
diff --git a/packages/x-data-grid-premium/src/hooks/features/export/serializer/utils.ts b/packages/x-data-grid-premium/src/hooks/features/export/serializer/utils.ts
index c40fb9ab44041..c44430a8cb875 100644
--- a/packages/x-data-grid-premium/src/hooks/features/export/serializer/utils.ts
+++ b/packages/x-data-grid-premium/src/hooks/features/export/serializer/utils.ts
@@ -122,6 +122,7 @@ export async function createValueOptionsSheetIfNeeded(
 }
 
 export interface ExcelExportInitEvent {
+  namespace?: string;
   serializedColumns: SerializedColumns;
   serializedRows: SerializedRow[];
   valueOptionsSheetName: string;
diff --git a/packages/x-data-grid-premium/src/hooks/features/export/useGridExcelExport.tsx b/packages/x-data-grid-premium/src/hooks/features/export/useGridExcelExport.tsx
index a410dc75d4ceb..edea6dbb04149 100644
--- a/packages/x-data-grid-premium/src/hooks/features/export/useGridExcelExport.tsx
+++ b/packages/x-data-grid-premium/src/hooks/features/export/useGridExcelExport.tsx
@@ -156,6 +156,8 @@ export const useGridExcelExport = (
       }, {});
 
       const message: ExcelExportInitEvent = {
+        // workers share the pub-sub channel namespace. Use this property to filter out messages.
+        namespace: 'mui-x-data-grid-export',
         serializedColumns,
         serializedRows,
         valueOptionsData,