diff --git a/src/app/eco-spreadsheet/page.tsx b/src/app/eco-spreadsheet/page.tsx
index 74cc02d..cccf9df 100644
--- a/src/app/eco-spreadsheet/page.tsx
+++ b/src/app/eco-spreadsheet/page.tsx
@@ -211,15 +211,14 @@ export default function EcoSpreadsheetHome() {
 
       if (extensions.includes("xlsx")) {
         // Append the excel onto the existing files
-        // TODO
-        setFiles([]);
+        setFiles((prevFiles) => [...prevFiles, ...ExcelfilesArray]);
         setUploadMessage("");
       } else {
         setUploadMessage("Please select the existing ECO spreadsheet excel");
         setButtonDisabled(true);
       }
     } else {
-      setUploadMessage("Please select exactly one Excel files");
+      setUploadMessage("Please select exactly one Excel file");
       setButtonDisabled(true);
     }
   }