diff --git a/scripts/code.gs b/scripts/code.gs
new file mode 100644
index 0000000..b42cc1d
--- /dev/null
+++ b/scripts/code.gs
@@ -0,0 +1,37 @@
+function onOpen() {
+  var ui = SpreadsheetApp.getUi();
+  ui.createMenu('Lehigh Preserve')
+    .addItem('Check My Work', 'sendSheetData')
+    .addToUi();
+}
+
+function sendSheetData() {
+  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
+  var data = sheet.getDataRange().getValues();
+
+  var payload = JSON.stringify(data);
+
+  var url = 'https://preserve.lehigh.edu/workbench/check';
+
+  var options = {
+    'method': 'POST',
+    'contentType': 'application/json',
+    'payload': payload
+  };
+
+  var response = UrlFetchApp.fetch(url, options);
+  var result = JSON.parse(response.getContentText());
+
+  displayErrors(result);
+}
+
+function displayErrors(errors) {
+  var sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
+
+  for (var cell in errors) {
+    var error = errors[cell];
+    sheet.getRange(cell).setBackground('red').setNote(error);
+  }
+
+  SpreadsheetApp.getUi().alert('Errors highlighted in the sheet.');
+}