diff --git a/VectoCore/VectoCore/OutputData/ModalDataContainer.cs b/VectoCore/VectoCore/OutputData/ModalDataContainer.cs
index c73b01af3dddf8a6fc90f3c53d8538d8b935269d..8b746b03f8be6c10fb85e1211603a3cef06ac0e3 100644
--- a/VectoCore/VectoCore/OutputData/ModalDataContainer.cs
+++ b/VectoCore/VectoCore/OutputData/ModalDataContainer.cs
@@ -32,6 +32,7 @@
 using System;
 using System.Collections.Generic;
 using System.Data;
+using System.Globalization;
 using System.Linq;
 using System.Runtime.CompilerServices;
 using TUGraz.VectoCommon.Models;
@@ -229,7 +230,11 @@ namespace TUGraz.VectoCore.OutputData
 				_additionalColumns.Add(fieldName);
 				Data.Columns.Add(fieldName);
 			}
-			CurrentRow[fieldName] = value;
+            if (value is double) {
+                CurrentRow[fieldName] = string.Format(CultureInfo.InvariantCulture, "{0}", value); 
+            } else {			
+                CurrentRow[fieldName] = value;
+            }
 		}
 
 		public Dictionary<string, DataColumn> Auxiliaries { get; set; }
diff --git a/VectoCore/VectoCoreTest/Integration/DriverStrategy/CoastingTests.cs b/VectoCore/VectoCoreTest/Integration/DriverStrategy/CoastingTests.cs
index f6521af289d2caa0d9922d959ce9056041e31dfe..88f4cd6e0a9dac1ecc76c42bbda9297ea7dcbe7d 100644
--- a/VectoCore/VectoCoreTest/Integration/DriverStrategy/CoastingTests.cs
+++ b/VectoCore/VectoCoreTest/Integration/DriverStrategy/CoastingTests.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using NUnit.Framework;
 using TUGraz.VectoCommon.Utils;
@@ -54,9 +55,9 @@ namespace TUGraz.VectoCore.Tests.Integration.DriverStrategy
 
 			var cycle = new[] {
 				// <s>,<v>,<grad>,<stop>
-				string.Format("  0,  {0}, {2},  0", v1, v2, slope),
-				string.Format("1000, {1}, {2},  0", v1, v2, slope),
-				string.Format("1100, {1},   0,  0", v1, v2, slope)
+				string.Format(CultureInfo.InvariantCulture, "  0,  {0}, {2},  0", v1, v2, slope),
+				string.Format(CultureInfo.InvariantCulture, "1000, {1}, {2},  0", v1, v2, slope),
+				string.Format(CultureInfo.InvariantCulture, "1100, {1},   0,  0", v1, v2, slope)
 			};
 			System.IO.Directory.CreateDirectory(string.Format(@"Coast_{0}_{1}", v1, v2, slope));
 			var slopePrefix = "";