diff --git a/processing/post/addAPS34IDEstrainCoords.py b/processing/post/addAPS34IDEstrainCoords.py
index fe834cf38..c14983799 100755
--- a/processing/post/addAPS34IDEstrainCoords.py
+++ b/processing/post/addAPS34IDEstrainCoords.py
@@ -2,6 +2,7 @@
 
 import os
 import sys
+from io import StringIO
 from optparse import OptionParser
 
 import numpy as np
@@ -24,61 +25,33 @@ Transform X,Y,Z,F APS BeamLine 34 coordinates to x,y,z APS strain coordinates.
 
 parser.add_option('-f','--frame',dest='frame', metavar='string',
                                  help='label of APS X,Y,Z coords')
-parser.add_option('--depth',     dest='depth',          metavar='string',
+parser.add_option('--depth',     dest='depth', metavar='string',
                                  help='depth')
 
 (options,filenames) = parser.parse_args()
+if filenames == []: filenames = [None]
 
 if options.frame is None:
   parser.error('frame not specified')
 if options.depth is None:
   parser.error('depth not specified')
 
-# --- loop over input files ------------------------------------------------------------------------
 
-if filenames == []: filenames = [None]
+theta=-0.75*np.pi
+RotMat2TSL=np.array([[1.,  0.,            0.],
+                     [0.,  np.cos(theta), np.sin(theta)],                                           # Orientation to account for -135 deg
+                     [0., -np.sin(theta), np.cos(theta)]])                                          # rotation for TSL convention
 
 for name in filenames:
-  try:    table = damask.ASCIItable(name = name,
-                                    buffered = False)
-  except: continue
-  damask.util.report(scriptName,name)
+    damask.util.report(scriptName,name)
 
-# ------------------------------------------ read header ------------------------------------------
+    table = damask.Table.from_ASCII(StringIO(''.join(sys.stdin.read())) if name is None else name)
+    
+    coord      = - table.get(options.frame)
+    coord[:,2] += table.get(options.depth)[:,0]
 
-  table.head_read()
+    table.add('coord',
+              np.einsum('ijk,ik->ij',np.broadcast_to(RotMat2TSL,(coord.shape[0],3,3)),coord),
+              scriptID+' '+' '.join(sys.argv[1:]))
 
-# ------------------------------------------ sanity checks -----------------------------------------
-  errors  = []
-  if table.label_dimension(options.frame) != 3:
-    errors.append('input {} does not have dimension 3.'.format(options.frame))
-  if table.label_dimension(options.depth) != 1:
-    errors.append('input {} does not have dimension 1.'.format(options.depth))
-  if errors  != []:
-    damask.util.croak(errors)
-    table.close(dismiss = True)
-    continue
-
-  table.info_append(scriptID + '\t' + ' '.join(sys.argv[1:]))
-
-# ------------------------------------------ assemble header ---------------------------------------
-  table.labels_append(['%i_coord'%(i+1) for i in range(3)])                                         # extend ASCII header with new labels
-  table.head_write()
-  
-# ------------------------------------------ process data ------------------------------------------
-  theta=-0.75*np.pi
-  RotMat2TSL=np.array([[1.,  0.,            0.],
-                       [0.,  np.cos(theta), np.sin(theta)],                                         # Orientation to account for -135 deg
-                       [0., -np.sin(theta), np.cos(theta)]])                                        # rotation for TSL convention
-  outputAlive = True
-  while outputAlive and table.data_read():                                                          # read next data line of ASCII table
-    coord = list(map(float,table.data[table.label_index(options.frame):table.label_index(options.frame)+3]))
-    depth = float(table.data[table.label_index(options.depth)])
-
-    table.data_append(np.dot(RotMat2TSL,np.array([-coord[0],-coord[1],-coord[2]+depth])))
-
-    outputAlive = table.data_write()                                                                # output processed line
-
-# ------------------------------------------ output finalization -----------------------------------  
-
-  table.close()                                                                                     # close ASCII tables
+    table.to_ASCII(sys.stdout if name is None else name)