diff --git a/src/best/BestResultsExcel.cpp b/src/best/BestResultsExcel.cpp
index b386b8d..0bc961e 100644
--- a/src/best/BestResultsExcel.cpp
+++ b/src/best/BestResultsExcel.cpp
@@ -68,7 +68,7 @@ namespace platform {
         // Body header
         row = 3;
         int col = 1;
-        writeString(row, 0, "Nº", "bodyHeader");
+        writeString(row, 0, "#", "bodyHeader");
         writeString(row, 1, "Dataset", "bodyHeader");
         writeString(row, 2, "Score", "bodyHeader");
         writeString(row, 3, "File", "bodyHeader");
@@ -184,7 +184,7 @@ namespace platform {
         // Body header
         row = 3;
         int col = 1;
-        writeString(row, 0, "Nº", "bodyHeader");
+        writeString(row, 0, "#", "bodyHeader");
         writeString(row, 1, "Dataset", "bodyHeader");
         for (const auto& model : models) {
             writeString(row, ++col, model.c_str(), "bodyHeader");
diff --git a/src/reports/DatasetsExcel.cpp b/src/reports/DatasetsExcel.cpp
index 667ef38..a24def6 100644
--- a/src/reports/DatasetsExcel.cpp
+++ b/src/reports/DatasetsExcel.cpp
@@ -21,7 +21,7 @@ namespace platform {
         // Body header
         row = 2;
         int col = 0;
-        for (const auto& name : { "Nº", "Dataset", "Samples", "Features", "#Numer.", "Classes", "Balance" }) {
+        for (const auto& name : { "#", "Dataset", "Samples", "Features", "#Numer.", "Classes", "Balance" }) {
             writeString(row, col++, name, "bodyHeader");
         }
         // Body
diff --git a/src/results/ResultsDatasetExcel.cpp b/src/results/ResultsDatasetExcel.cpp
index 945e503..b4f1225 100644
--- a/src/results/ResultsDatasetExcel.cpp
+++ b/src/results/ResultsDatasetExcel.cpp
@@ -20,7 +20,7 @@ namespace platform {
         // Body header
         row = 2;
         int col = 0;
-        for (const auto& name : { "Nº", "Model", "Date", "Time", "Score", "Hyperparameters" }) {
+        for (const auto& name : { "#", "Model", "Date", "Time", "Score", "Hyperparameters" }) {
             writeString(row, col++, name, "bodyHeader");
         }
         // Body