diff --git a/.gitattributes b/.gitattributes
index 2695e59b3bd83df98a8ff09c733bdbde7c7e17ed..ba14991a25b03e2aea9e6128d386e18478779cb6 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -63,3 +63,4 @@ data/AB/1914/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1915/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1916/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
 data/AB/1917/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
+data/AB/1918/04_correctedxml.tar.gz filter=lfs diff=lfs merge=lfs -text
diff --git a/.renku/workflow/0aeb04f8921b417980a537c6ed6e4117_python.cwl b/.renku/workflow/0aeb04f8921b417980a537c6ed6e4117_python.cwl
new file mode 100644
index 0000000000000000000000000000000000000000..fc7b6dea552d4642592a7a2402b5a318c16ee262
--- /dev/null
+++ b/.renku/workflow/0aeb04f8921b417980a537c6ed6e4117_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/1918/02_extractedxml.tar.gz
+    inputBinding:
+      position: 2
+      separate: true
+      shellQuote: true
+    streamable: false
+    type: File
+  input_3:
+    default: data/AB/1918/04_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/1918
+    writable: true
+successCodes: []
+temporaryFailCodes: []
diff --git a/data/AB/1918/04_correctedxml.tar.gz b/data/AB/1918/04_correctedxml.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..831c8cfdc86328725653c15a879cb2bdfbd5b8b4
--- /dev/null
+++ b/data/AB/1918/04_correctedxml.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ab21cfd752a0c6e38721024487720cb41ea0e4dde8b8fd6a69f5115172c01c3f
+size 5404470