diff --git a/Controllers/LinesController.cs b/Controllers/LinesController.cs
index 5c3c3df..b91c6b3 100644
--- a/Controllers/LinesController.cs
+++ b/Controllers/LinesController.cs
@@ -1379,16 +1379,22 @@ namespace line_gestao_api.Controllers
 
                     var map = BuildHeaderMapRange(headerRow, startCol, endCol);
                     int colItem = GetCol(map, "ITEM");
-                    if (colItem == 0) continue;
+                    int colChip = GetColAny(map, "Nº DO CHIP", "N° DO CHIP", "NUMERO DO CHIP", "N DO CHIP", "NUM. DO CHIP", "CHIP");
+                    int colObs = GetColAny(map, "OBSERVAÇÕES", "OBSERVACOES", "OBSERVACAO", "OBS");
+                    if (colItem == 0 || colChip == 0 || colObs == 0) continue;
 
                     for (int r = startRow; r <= endRow; r++)
                     {
                         var itemStr = GetCellString(ws, r, colItem);
-                        if (string.IsNullOrWhiteSpace(itemStr)) continue;
+                        if (string.IsNullOrWhiteSpace(itemStr)) break;
 
-                        var numeroChip = NullIfEmptyDigits(GetCellByHeaderAny(ws, r, map,
-                            "Nº DO CHIP", "N° DO CHIP", "NUMERO DO CHIP", "N DO CHIP", "NUM. DO CHIP"));
-                        var observacoes = GetCellByHeaderAny(ws, r, map, "OBSERVAÇÕES", "OBSERVACOES", "OBS");
+                        var chipRaw = GetCellString(ws, r, colChip);
+                        var numeroChip = NullIfEmptyDigits(chipRaw);
+                        if (string.IsNullOrWhiteSpace(numeroChip) && !string.IsNullOrWhiteSpace(chipRaw))
+                        {
+                            numeroChip = chipRaw.Trim();
+                        }
+                        var observacoes = GetCellString(ws, r, colObs);
                         if (string.IsNullOrWhiteSpace(numeroChip) && string.IsNullOrWhiteSpace(observacoes))
                         {
                             continue;
@@ -1621,15 +1627,17 @@ namespace line_gestao_api.Controllers
         {
             var hasItem = false;
             var hasNumeroChip = false;
+            var hasObs = false;
 
             foreach (var cell in row.CellsUsed())
             {
                 var k = NormalizeHeader(cell.GetString());
                 if (k == "ITEM") hasItem = true;
                 if (k.Contains("CHIP")) hasNumeroChip = true;
+                if (k.Contains("OBS")) hasObs = true;
             }
 
-            return hasItem && hasNumeroChip;
+            return hasItem && hasNumeroChip && hasObs;
         }
 
         // ==========================================================