--- a
+++ b/CLI/MusculoskeletalAnalysisCLITools/writeReport.py
@@ -0,0 +1,43 @@
+import os.path
+import numpy as np
+
+# Writes data to a tab seperated format
+# filepath: The filename and path of the file to write to
+# header: A list of collumn names, written as the first line if this is a new file
+# data: A list of data elements, each element can be single or a numpy ndarray
+def writeReport(filepath, header, data):
+    if os.path.exists(filepath):
+        # If the file exist open and append to it
+        fOut = open(filepath, "a")
+    else:
+        # If the file does not exist create it and write header
+        fOut = open(filepath, "w")
+        if len(header) > 0:
+            for h in header[:-1]:
+                fOut.write(h+"\t")
+            fOut.write(header[-1]+"\n")
+    if len(data) > 0:
+        # Write the data
+        # If data contains ndarray write multiple lines, skipping over collumns that are not ndarray
+        maxLength = max(numEl(d) for d in data)
+        for i in range(maxLength):
+            for j in range(len(data)):
+                d = data[j]
+                if numEl(d) > i:
+                    if isinstance(d, np.ndarray):
+                        fOut.write(str(d[i]))
+                    else:
+                        fOut.write(str(d))
+                if j < len(data)-1:
+                    fOut.write("\t")
+                else:
+                    fOut.write("\n")
+    fOut.close()
+
+# Gets the number of elements in a datapoint,
+# Returns the length of ndarray or 1
+def numEl(d):
+    if isinstance(d, np.ndarray):
+        return len(d)
+    else:
+        return 1
\ No newline at end of file