diff --git a/package.json b/package.json
index a061255..001652d 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "@thoughtspot/ts-chart-sdk",
     "private": false,
-    "version": "2.6.0",
+    "version": "2.6.1",
     "module": "lib/index",
     "main": "lib/index",
     "types": "lib/index",
diff --git a/src/main/custom-chart-context.spec.ts b/src/main/custom-chart-context.spec.ts
index e7f47bf..d1b44a6 100644
--- a/src/main/custom-chart-context.spec.ts
+++ b/src/main/custom-chart-context.spec.ts
@@ -1788,6 +1788,7 @@ describe('CustomChartContext', () => {
             });
 
             expect(response).toEqual({
+                isDownloadHandled: true,
                 fileName: '',
                 error: '',
                 message: 'Download Excel not implemented.',
@@ -1796,6 +1797,7 @@ describe('CustomChartContext', () => {
 
         test('should use custom handler when provided', async () => {
             const mockDownloadHandler = jest.fn().mockReturnValue({
+                isDownloadHandled: true,
                 fileName: 'custom-report.xlsx',
                 error: '',
                 message: 'Success',
@@ -1825,6 +1827,7 @@ describe('CustomChartContext', () => {
 
             expect(mockDownloadHandler).toHaveBeenCalledWith(testPayload);
             expect(response).toEqual({
+                isDownloadHandled: true,
                 fileName: 'custom-report.xlsx',
                 error: '',
                 message: 'Success',
@@ -1833,6 +1836,7 @@ describe('CustomChartContext', () => {
 
         test('should handle errors in custom handler', async () => {
             const mockDownloadHandler = jest.fn().mockReturnValue({
+                isDownloadHandled: true,
                 fileName: '',
                 error: 'Failed to generate excel',
                 message: 'Error occurred',
@@ -1858,6 +1862,7 @@ describe('CustomChartContext', () => {
 
             expect(mockDownloadHandler).toHaveBeenCalled();
             expect(response).toEqual({
+                isDownloadHandled: true,
                 fileName: '',
                 error: 'Failed to generate excel',
                 message: 'Error occurred',
@@ -1866,6 +1871,7 @@ describe('CustomChartContext', () => {
 
         test('should pass through payload to custom handler', async () => {
             const mockDownloadHandler = jest.fn().mockReturnValue({
+                isDownloadHandled: true,
                 fileName: 'test.xlsx',
                 error: '',
                 message: 'Success',
@@ -1912,6 +1918,7 @@ describe('CustomChartContext', () => {
                             return response;
                         }
                         return {
+                            isDownloadHandled: true,
                             fileName: 'first.xlsx',
                             error: '',
                             message: 'First handler response',
@@ -1921,6 +1928,7 @@ describe('CustomChartContext', () => {
                 );
 
             const secondHandler = jest.fn().mockReturnValue({
+                isDownloadHandled: true,
                 fileName: 'second.xlsx',
                 error: '',
                 message: 'Second handler response',
@@ -1958,6 +1966,7 @@ describe('CustomChartContext', () => {
             // Verify handlers were called in correct order
             expect(secondHandler).toHaveBeenCalledWith(testPayload, undefined);
             expect(firstHandler).toHaveBeenCalledWith(testPayload, {
+                isDownloadHandled: true,
                 fileName: 'second.xlsx',
                 error: '',
                 message: 'Second handler response',
@@ -1967,6 +1976,7 @@ describe('CustomChartContext', () => {
             // Verify final result comes from first handler's return value
             // (last custom handler to execute)
             expect(result).toEqual({
+                isDownloadHandled: true,
                 fileName: 'second.xlsx',
                 error: '',
                 message: 'Second handler response',
diff --git a/src/main/custom-chart-context.ts b/src/main/custom-chart-context.ts
index be63666..684b41b 100644
--- a/src/main/custom-chart-context.ts
+++ b/src/main/custom-chart-context.ts
@@ -1186,6 +1186,7 @@ export class CustomChartContext {
                     return response;
                 }
                 return Promise.resolve({
+                    isDownloadHandled: true,
                     fileName: '',
                     error: '',
                     message: 'Download Excel not implemented.',
diff --git a/src/react/use-custom-chart-context.spec.tsx b/src/react/use-custom-chart-context.spec.tsx
index e98bc6e..555572f 100644
--- a/src/react/use-custom-chart-context.spec.tsx
+++ b/src/react/use-custom-chart-context.spec.tsx
@@ -629,6 +629,7 @@ describe('useChartContext DownloadExcelTrigger event handler', () => {
 
         await waitFor(() => {
             expect(response).toEqual({
+                isDownloadHandled: true,
                 fileName: '',
                 error: '',
                 message: 'Download Excel not implemented.',
diff --git a/src/react/use-custom-chart-context.tsx b/src/react/use-custom-chart-context.tsx
index 84ac347..a3432ae 100644
--- a/src/react/use-custom-chart-context.tsx
+++ b/src/react/use-custom-chart-context.tsx
@@ -113,6 +113,7 @@ export const useChartContext = (
         ) => {
             setChartModel(context.getChartModel());
             return Promise.resolve({
+                isDownloadHandled: true,
                 fileName: '',
                 error: '',
                 message: 'Download Excel not implemented.',
diff --git a/src/types/ts-to-chart-event.types.ts b/src/types/ts-to-chart-event.types.ts
index e8dedd3..37900a9 100644
--- a/src/types/ts-to-chart-event.types.ts
+++ b/src/types/ts-to-chart-event.types.ts
@@ -93,6 +93,15 @@ export interface DownloadExcelTriggerPayload {
     answerTitle: string;
 }
 export interface DownloadExcelTriggerResponse {
+    // This `isDownloadHandled` flag indicates whether the custom chart has
+    // handled the XLSX download. If true, the custom chart managed the
+    // download. If false, the ThoughtSpot default XLSX downloader will be used
+    // instead. For example, in Muze Studio, only pivot tables support XLSX
+    // export. For other chart types like bar or line charts, this flag should
+    // be set to false to signal that the download could not be processed by the
+    // custom chart, allowing the default ThoughtSpot downloader to handle the
+    // export.
+    isDownloadHandled: boolean;
     fileName: string;
     error: string;
     message: string;