diff --git a/App/app/api/po/[id]/export/route.ts b/App/app/api/po/[id]/export/route.ts
index fa50b2f..36ef42c 100644
--- a/App/app/api/po/[id]/export/route.ts
+++ b/App/app/api/po/[id]/export/route.ts
@@ -91,7 +91,9 @@ export async function GET(request: NextRequest, { params }: Props) {
     const gstAmt    = taxable * gstRate;
     const li_ = li as typeof li & { name?: string };
     const desc = li_.name ?? li.description ?? "";
-    return { sn: i + 1, desc, unit: li.unit, qty, unitPrice, gstRate, taxable, gstAmt, total: taxable + gstAmt };
+    // When both name and description exist, include the optional description separately
+    const optionalDesc = li_.name && li.description ? li.description : "";
+    return { sn: i + 1, desc, optionalDesc, unit: li.unit, qty, unitPrice, gstRate, taxable, gstAmt, total: taxable + gstAmt };
   });
 
   const totalTaxable = items.reduce((s, i) => s + i.taxable, 0);
@@ -349,15 +351,18 @@ export async function GET(request: NextRequest, { params }: Props) {
     for (let idx = 0; idx < BODY_ROWS; idx++) {
       const r = HDR_ROW + 1 + idx;
       // Taller rows: long item names + potential description sub-line need room
-      const descLen = (items[idx]?.desc ?? "").length;
-      ws.getRow(r).height = descLen > 40 ? 28 : 20;
+      const descLen = (items[idx]?.desc ?? "").length + (items[idx]?.optionalDesc ?? "").length;
+      ws.getRow(r).height = descLen > 40 || items[idx]?.optionalDesc ? 32 : 20;
       const item = items[idx];
       const fillAlt = idx % 2 === 1
         ? { type: "pattern" as const, pattern: "solid" as const, fgColor: { argb: "FFFAFAFA" } }
         : undefined;
 
       sc(r, 1, item?.sn ?? null, { font: fBase, fill: fillAlt, border: bordAll, align: alignC });
-      sc(r, 2, item?.desc ?? "",   { font: fBase, fill: fillAlt, border: bordAll, align: alignL });
+      const xlsxDesc = item
+        ? (item.optionalDesc ? `${item.desc}\n${item.optionalDesc}` : item.desc)
+        : "";
+      sc(r, 2, xlsxDesc,   { font: fBase, fill: fillAlt, border: bordAll, align: alignL });
       ws.mergeCells(`B${r}:C${r}`);
       sc(r, 4, item?.unit ?? "",   { font: fBase, fill: fillAlt, border: bordAll, align: alignC });
       sc(r, 5, item ? item.qty : null, { font: fBase, fill: fillAlt, border: bordAll, align: alignR, numFmt: NUM_FMT });
@@ -467,7 +472,7 @@ export async function GET(request: NextRequest, { params }: Props) {
   const itemRows = items.map((item, i) => `
     <tr style="background:${i % 2 === 0 ? "#fff" : "#fafafa"}">
       <td style="text-align:center">${item.sn}</td>
-      <td>${item.desc}</td>
+      <td>${item.desc}${item.optionalDesc ? `<br/><span style="font-size:7.5pt;color:#666;font-style:italic">${item.optionalDesc}</span>` : ""}</td>
       <td style="text-align:center">${item.unit}</td>
       <td style="text-align:right">${fmtNum(item.qty, item.qty % 1 === 0 ? 0 : 3)}</td>
       <td style="text-align:right">${fmtNum(item.unitPrice)}</td>