diff --git a/Applications/Utils/FileConverter/OGS2VTK.cpp b/Applications/Utils/FileConverter/OGS2VTK.cpp
index 6799fdbfd5e65a3974eeb0683848f80d55e24a95..fddf988cccc541f7cacdb958265a6af6e8bc3e64 100644
--- a/Applications/Utils/FileConverter/OGS2VTK.cpp
+++ b/Applications/Utils/FileConverter/OGS2VTK.cpp
@@ -44,6 +44,12 @@ int main (int argc, char* argv[])
         "the name of the file the mesh will be written to", true, "",
         "file name of output mesh");
     cmd.add(mesh_out);
+    TCLAP::ValueArg<bool> use_ascii_arg(
+        "", "ascii_output",
+        "Use ascii format for data in the vtu output. Due to possible rounding "
+        "the ascii output could result in lower accuracy.",
+        false, false, "boolean value");
+    cmd.add(use_ascii_arg);
     cmd.parse(argc, argv);
 
     std::unique_ptr<MeshLib::Mesh const> mesh(
@@ -55,8 +61,10 @@ int main (int argc, char* argv[])
     INFO("Mesh read: %d nodes, %d elements.", mesh->getNumberOfNodes(),
          mesh->getNumberOfElements());
 
-    MeshLib::IO::VtuInterface vtu(mesh.get());
-    vtu.writeToFile(mesh_out.getValue());
+    auto const data_mode =
+        use_ascii_arg.getValue() ? vtkXMLWriter::Ascii : vtkXMLWriter::Binary;
+
+    MeshLib::IO::writeVtu(*mesh, mesh_out.getValue(), data_mode);
 
     return EXIT_SUCCESS;
 }
diff --git a/Applications/Utils/MeshEdit/ExtractSurface.cpp b/Applications/Utils/MeshEdit/ExtractSurface.cpp
index 75e31e621c8237701f60dc463fe787a6f0ad5ec4..30c55122398d1565310735854d373d530ad4b960 100644
--- a/Applications/Utils/MeshEdit/ExtractSurface.cpp
+++ b/Applications/Utils/MeshEdit/ExtractSurface.cpp
@@ -120,13 +120,9 @@ int main (int argc, char* argv[])
         out_fname = BaseLib::dropFileExtension(mesh_in.getValue()) + "_sfc.vtu";
     }
 
-    if (use_ascii_arg.getValue())
-    {
-        MeshLib::IO::writeVtu(*surface_mesh, out_fname, vtkXMLWriter::Ascii);
-    }
-    else
-    {
-        MeshLib::IO::writeMeshToFile(*surface_mesh, out_fname);
-    }
+    auto const data_mode =
+        use_ascii_arg.getValue() ? vtkXMLWriter::Ascii : vtkXMLWriter::Binary;
+    MeshLib::IO::writeVtu(*surface_mesh, out_fname, data_mode);
+
     return EXIT_SUCCESS;
 }
diff --git a/Applications/Utils/MeshEdit/createLayeredMeshFromRasters.cpp b/Applications/Utils/MeshEdit/createLayeredMeshFromRasters.cpp
index ce0037029b6c1806caabbc948bef7231a873d87b..016b49fa6c59b18051102f342dccd7eacb8d9e30 100644
--- a/Applications/Utils/MeshEdit/createLayeredMeshFromRasters.cpp
+++ b/Applications/Utils/MeshEdit/createLayeredMeshFromRasters.cpp
@@ -24,7 +24,7 @@
 #include "BaseLib/FileTools.h"
 
 #include "MeshLib/IO/readMeshFromFile.h"
-#include "MeshLib/IO/writeMeshToFile.h"
+#include "MeshLib/IO/VtkIO/VtuInterface.h"
 #include "Applications/FileIO/AsciiRasterInterface.h"
 
 #include "MeshLib/Mesh.h"
@@ -98,6 +98,13 @@ int main (int argc, char* argv[])
         false, min_thickness, "minimum layer thickness");
     cmd.add(min_thickness_arg);
 
+    TCLAP::ValueArg<bool> use_ascii_arg(
+        "", "ascii_output",
+        "Use ascii format for data in the vtu output. Due to possible rounding "
+        "the ascii output could result in lower accuracy.",
+        false, false, "boolean value");
+    cmd.add(use_ascii_arg);
+
     cmd.parse(argc, argv);
 
     if (min_thickness_arg.isSet())
@@ -149,9 +156,15 @@ int main (int argc, char* argv[])
     {
         output_name.append(".vtu");
     }
+
     INFO("Writing mesh '%s' ... ", output_name.c_str());
-    MeshLib::IO::writeMeshToFile(*(mapper.getMesh("SubsurfaceMesh").release()),
-                                 output_name);
+    auto result_mesh = std::make_unique<MeshLib::Mesh>(
+        *(mapper.getMesh("SubsurfaceMesh").release()));
+
+    auto const data_mode =
+        use_ascii_arg.getValue() ? vtkXMLWriter::Ascii : vtkXMLWriter::Binary;
+
+    MeshLib::IO::writeVtu(*result_mesh, output_name, data_mode);
     INFO("done.");
 
     return EXIT_SUCCESS;