diff --git a/scripts/csvMentinkToBin.py b/scripts/csvMentinkToBin.py
index 8e6a8d1e..c580338d 100755
--- a/scripts/csvMentinkToBin.py
+++ b/scripts/csvMentinkToBin.py
@@ -14,23 +14,34 @@
 import matplotlib.pyplot as plt
 import pandas as pd
 
+# We insert a cut-off on the field z-axis (in meters)
+zCutOffLow = -6
+zCutOffHigh = 6
+
 # Field map is provided only for the top magnetic bore. We will recenter the field map.
 # Since this is a condition for TRestAxionMagneticField.
 xCenter = 0
-yCenter = 0
-zCenter = 0.7975
+yCenter = 0.8
+zCenter = 0
 
 print("Starting to read")
 # loading the data into a matrix (xyzBdata)
-file = r"../../../data/magneticField/Mentink_202401.xlsx"
-df = pd.read_excel(file)
+file = r"../data/magneticField/Mentink_20240124.txt"
+df = pd.read_csv(file, comment="%", sep='\t',header=None)
+print( df.head() )
 
-print(df[1:5])
+print( "---" )
+print(df[0:5])
+print( "---" )
 
 print("Translating to matrix")
-xyzBdata = df.as_matrix(columns=df.columns[0:])
+xyzBdata = df.values
 
+print( "#####" )
 print(xyzBdata[0][0:6])
+print(xyzBdata[1][0:6])
+print(xyzBdata[2][0:6])
+print( "#####" )
 
 print(len(xyzBdata))
 
@@ -52,20 +63,7 @@
 f = open("output.txt", "wt")
 
 for x in xyzBdata:
-    f.write(
-        str(x[0])
-        + "\t"
-        + str(x[1])
-        + "\t"
-        + str(x[2])
-        + "\t"
-        + str(x[3])
-        + "\t"
-        + str(x[4])
-        + "\t"
-        + str(x[5])
-        + "\n"
-    )
+    f.write( str(x[0]) + "\t" + str(x[1]) + "\t" + str(x[2]) + "\t" + str(x[3]) + "\t" + str(x[4]) + "\t" + str(x[5]) + "\n")
     if xMax < x[0]:
         xMax = x[0]
     if yMax < x[1]:
@@ -118,35 +116,26 @@
 for x in xyzBdata:
     # We recenter the volume and redefine axis (x becomes z, y becomes x and z becomes y)
     # XLS file distances are expressed in m. We translate to mm.
-    y = [
-        1000 * (x[1] - yCenter),
-        1000 * (x[2] - zCenter),
-        1000 * (x[0] - xCenter),
-        x[4],
-        x[5],
-        x[3],
-    ]
-
-    # Baby-IAXO is symmetric respect to z (direction along axis) and x (direction parallel to the ground).
-    # I.e. x and y in the previous axis definition.
-    # The y-axis symmetry (in the new axis definition) affects the second bore that is not described in this map.
-    # We apply the corresponding symmetries to define the full map of one magnetic bore in the output binary file.
-
-    count = count + 1
-    fbin.write(struct.pack("<%df" % len(y), *y))
-    if count < 6:
-        print(len(y))
-        print(x[0:6])
-        print(y[0:6])
-    # The original file was only missing the z-axis, when we change the sign of z-axis we must change the sign of Bz.
-    if y[2] > 0:
-        y[2] = -y[2]
-        y[5] = -y[5]
-        count = count + 1
-        fbin.write(struct.pack("<%df" % len(y), *y))
-        if count < 6:
-            print(len(y))
-            print(x[0:6])
-            print(y[0:6])
+
+	if( x[2] <= zCutOffHigh and x[2] > zCutOffLow):
+		y = [
+			1000 * (x[0] - xCenter),
+			1000 * (x[1] - yCenter),
+			1000 * (x[2] - zCenter),
+			x[3],
+			x[4],
+			x[5],
+		]
+
+		# Baby-IAXO is symmetric respect to z (direction along axis) and x (direction parallel to the ground).
+		# I.e. x and y in the previous axis definition.
+		# The y-axis symmetry (in the new axis definition) affects the second bore that is not described in this map.
+		# We apply the corresponding symmetries to define the full map of one magnetic bore in the output binary file.
+		count = count + 1
+		fbin.write(struct.pack("<%df" % len(y), *y))
+		if count < 6:
+			print(len(y))
+			print(x[0:6])
+			print(y[0:6])
 fbin.close()
 print("Lines writen : " + str(count))