diff --git a/interactive-mining-angular-frontend/src/app/configuration/resultspreview/resultspreview.component.html b/interactive-mining-angular-frontend/src/app/configuration/resultspreview/resultspreview.component.html
index 46ec4f7..fa2de21 100755
--- a/interactive-mining-angular-frontend/src/app/configuration/resultspreview/resultspreview.component.html
+++ b/interactive-mining-angular-frontend/src/app/configuration/resultspreview/resultspreview.component.html
@@ -36,7 +36,7 @@
               <input #docupload type="file" (change)="fileChangeUpload($event);docupload.value=''" accept=".txt,.pdf">
               <span class="uk-link">Upload your documents</span>
             </div>
-              <span class="cm-tooltip" uk-icon="icon: info" title="<span class='cm-label cm-label-docs'>PDF</span><span class='cm-label cm-label-docs'>TXT</span><span class='cm-label cm-label-docs'>JSON</span><span class='uk-text uk-text-small cm-coloured-text-meta'><br>maximum 1MB</span><br><br>Upload either a <b>PDF</b> or a <b>TXT</b> file. For <b>multiple documents</b> use valid <b>JSON file with two keys (id, text)</b>" uk-tooltip="pos: right"></span>
+						<span class="cm-tooltip" uk-icon="icon: info" title='<span class="cm-label cm-label-docs">PDF</span><span class="cm-label cm-label-docs">TXT</span><span class="cm-label cm-label-docs">JSON</span><span class="uk-text uk-text-small cm-coloured-text-meta"><br>maximum 1MB</span><br><br> Upload your document in a <b>PDF</b> file.<br>For multiple documents use <b>TXT</b> or <b>JSON</b> files in JSON format where each row contains a <b>valid JSON record</b> with two keys "id", and "text" e.g {"id":"1", "text":"sample plain text"}' uk-tooltip="pos: right"></span>
           </div>
         </div>