Added initial Excel changes

src/hooks/usePDFDownload.tsx

@@ -1,15 +1,16 @@
 import React from "react";
 import axios from "axios";
 import { toast } from "react-toastify";
-import { BsFilePdf } from "react-icons/bs";
+import { BsFilePdf, BsFileExcel} from "react-icons/bs";
 
 type DownloadingPdf = {
   [key: string]: boolean;
 };
 
 type PdfEndpoint = "stats" | "assignments";
+type FileType = "pdf" | "excel";
 
-export const usePDFDownload = (endpoint: PdfEndpoint) => {
+export const usePDFDownload = (endpoint: PdfEndpoint, file: FileType = 'pdf') => {
   const [downloadingPdf, setDownloadingPdf] = React.useState<DownloadingPdf>(
     {}
   );
@@ -17,7 +18,7 @@ export const usePDFDownload = (endpoint: PdfEndpoint) => {
   const triggerDownload = async (id: string) => {
     try {
       setDownloadingPdf((prev) => ({ ...prev, [id]: true }));
-      const res = await axios.post(`/api/${endpoint}/${id}/export`);
+      const res = await axios.post(`/api/${endpoint}/${id}/export/${file}`);
       toast.success("Report ready!");
       const link = document.createElement("a");
       link.href = res.data;
@@ -45,8 +46,11 @@ export const usePDFDownload = (endpoint: PdfEndpoint) => {
         <span className={`${loadingClasses} loading loading-infinity w-6`} />
       );
     }
+    
+    const Icon = file === "excel" ? BsFileExcel : BsFilePdf;
+
     return (
-      <BsFilePdf
+      <Icon
         className={`${downloadClasses} text-2xl cursor-pointer`}
         onClick={(e) => {
           e.stopPropagation();