diff --git a/src/Visual_DVM_2021/Passes/All/ExportTasksPackageToExcel.java b/src/Visual_DVM_2021/Passes/All/ExportTasksPackageToExcel.java
index 25c5efd5..682468bc 100644
--- a/src/Visual_DVM_2021/Passes/All/ExportTasksPackageToExcel.java
+++ b/src/Visual_DVM_2021/Passes/All/ExportTasksPackageToExcel.java
@@ -330,9 +330,9 @@ public class ExportTasksPackageToExcel extends Pass_2021<Vector<TasksPackage>> {
             if (NUM_THREADS != null && NUM_THREADS == 0) NUM_THREADS = 1;
             Integer NUM_CUDAS = extractIntegerEnvironmentValue(task.environments, "DVMH_NUM_CUDAS");
             //--
-            Object num_threads = (NUM_THREADS != null) ? NUM_THREADS : Constants.Nan;
-            Object num_cudas = (NUM_CUDAS != null) ? NUM_CUDAS : Constants.Nan;
-            Object total_threads = (NUM_THREADS != null) ? NUM_THREADS * Utils.getMatrixProcessors(task.matrix) : Constants.Nan;
+            int num_threads = (NUM_THREADS != null) ? NUM_THREADS : 1;
+            int num_cudas = (NUM_CUDAS != null) ? NUM_CUDAS :0;
+            int total_threads = num_threads * Utils.getMatrixProcessors(task.matrix);
             //--
             addTaskRow(offset.getValue(),
                     task.group_description, //0