diff --git a/.gitattributes b/.gitattributes
index 26122d1809aff562cd400c2349b4e5fdc98470db..95006b152db4d04444a778b01425dac098326db7 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -166,3 +166,4 @@ data/AB/1967/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1968/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1969/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1970/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
+data/AB/1971/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/.renku/workflow/bc7b832a372149e2986b571e0e8fd144_python.cwl b/.renku/workflow/bc7b832a372149e2986b571e0e8fd144_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..db26d337488a99b3b883ef2a729eefaed948aa48
--- /dev/null
+++ b/.renku/workflow/bc7b832a372149e2986b571e0e8fd144_python.cwl
@@ -0,0 +1,51 @@
+arguments: []
+baseCommand:
+- python
+class: CommandLineTool
+cwlVersion: v1.0
+hints: []
+inputs:
+  input_1:
+    default:
+      class: File
+      path: ../../src/python/run_correctxml.py
+    inputBinding:
+      position: 1
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_2:
+    default:
+      class: File
+      path: ../../data/AB/1971/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1971/04_correctedxml.tar.gz
+    inputBinding:
+      position: 3
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: string
+outputs:
+  output_0:
+    outputBinding:
+      glob: $(inputs.input_3)
+    streamable: false
+    type: File
+permanentFailCodes: []
+requirements:
+- class: InlineJavascriptRequirement
+- class: InitialWorkDirRequirement
+  listing:
+  - entry: '$({"listing": [], "class": "Directory"})'
+    entryname: data/AB/1971
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1971/04_correctedxml.tar.gz b/data/AB/1971/04_correctedxml.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..66cc5664e06f6b82cf70446543bc85ba5154dfc3
--- /dev/null
+++ b/data/AB/1971/04_correctedxml.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d8a222f55fcfcf9f0d28e0e27cd9e804f9401adfc8fd01ec31b6d2651598f34e
+size 26675254