change

static/script.js

@@ -717,7 +717,7 @@ askBtn.addEventListener('click', async () => {
                             <span class="drop-text" id="dropText">Drop your file here or click to browse</span>
                         </label>
                         <input type="file" id="graphFileInput" class="file-input" 
-                               accept=".xls,.xlsx" hidden>
+                               accept=".doc,.docx,.xls,.xlsx,.pdf,.ppt,.pptx" hidden>
                     </div>
                     
                     <div class="action-container">
@@ -828,7 +828,7 @@ askBtn.addEventListener('click', async () => {
             formData.append("file", fileInput.files[0]);
             formData.append("query", graphTypeSelect.value);
 
-            const response = await fetch("https://aiwebdev-smartdocai.hf.space/generate_viz/", {
+            const response = await fetch("http://localhost:8000/generate_viz/", {
                 method: "POST",
                 body: formData,
                 headers: { 'Accept': 'image/*' }