diff --git a/Lisp/tests.lsp b/Lisp/tests.lsp
index aa8612b..d20ef85 100644
--- a/Lisp/tests.lsp
+++ b/Lisp/tests.lsp
@@ -25,7 +25,154 @@
   (princ)
 )
 
-(defun c:EXPORTCSV ()
-  (princ "\n[SSG_LIB] EXPORTCSV: Noch nicht implementiert (Dummy).")
+;; ============================================================
+;; EXPORTCSV - Alle INSERT-Entities sammeln und als JSON exportieren
+;; Anschliessend Python-Skript aufrufen fuer CSV-Erzeugung
+;; ============================================================
+
+;; --- Wert sicher als String zurueckgeben ---
+(defun csv:to-str (val)
+  (cond
+    ((null val) "")
+    ((= (type val) 'STR) val)
+    ((= (type val) 'INT) (itoa val))
+    ((= (type val) 'REAL) (rtos val 2 6))
+    (T (vl-princ-to-string val))
+  )
+)
+
+;; --- String fuer JSON escapen (Anfuehrungszeichen) ---
+(defun csv:json-escape (s / pos result ch)
+  (setq result "")
+  (setq pos 1)
+  (repeat (strlen s)
+    (setq ch (substr s pos 1))
+    (cond
+      ((= ch "\"") (setq result (strcat result "\\\"")))
+      ((= ch "\\") (setq result (strcat result "\\\\")))
+      (T (setq result (strcat result ch)))
+    )
+    (setq pos (1+ pos))
+  )
+  result
+)
+
+;; --- Attribute eines INSERT-Blocks als JSON-Objekt lesen ---
+;; ename = Entity-Name des INSERT
+;; Rueckgabe: String wie {"TAG1":"Wert1","TAG2":"Wert2"}
+(defun csv:read-attribs (ename / obj typ tag wert result first-item)
+  (setq obj (entnext ename))
+  (setq result "{")
+  (setq first-item T)
+  (while (and obj (not (equal (cdr (assoc 0 (entget obj))) "SEQEND")))
+    (setq typ (cdr (assoc 0 (entget obj))))
+    (if (equal typ "ATTRIB")
+      (progn
+        (setq tag  (cdr (assoc 2 (entget obj))))
+        (setq wert (cdr (assoc 1 (entget obj))))
+        (if (not first-item)
+          (setq result (strcat result ","))
+        )
+        (setq result (strcat result
+          "\"" (csv:json-escape tag) "\":\""
+          (csv:json-escape wert) "\""))
+        (setq first-item nil)
+      )
+    )
+    (setq obj (entnext obj))
+  )
+  (strcat result "}")
+)
+
+;; --- Einen INSERT-Block als JSON-Objekt schreiben ---
+(defun csv:block-to-json (ename / ed blk-name layer pt rotation handle attribs has-attribs)
+  (setq ed (entget ename))
+  (setq blk-name  (cdr (assoc 2 ed)))
+  (setq layer     (cdr (assoc 8 ed)))
+  (setq pt        (cdr (assoc 10 ed)))
+  (setq rotation  (cdr (assoc 50 ed)))
+  (setq handle    (cdr (assoc 5 ed)))
+  (setq has-attribs (cdr (assoc 66 ed)))
+  (if (null rotation) (setq rotation 0.0))
+  (if has-attribs
+    (setq attribs (csv:read-attribs ename))
+    (setq attribs "{}")
+  )
+  (strcat
+    "  {\"block_name\":\"" (csv:json-escape blk-name) "\""
+    ",\"layer\":\"" (csv:json-escape layer) "\""
+    ",\"handle\":\"" (csv:json-escape handle) "\""
+    ",\"x\":" (rtos (car pt) 2 4)
+    ",\"y\":" (rtos (cadr pt) 2 4)
+    ",\"z\":" (rtos (caddr pt) 2 4)
+    ",\"rotation\":" (rtos (* (/ rotation pi) 180.0) 2 4)
+    ",\"attribs\":" attribs
+    "}"
+  )
+)
+
+;; --- Hauptfunktion: EXPORTCSV ---
+(defun c:EXPORTCSV ( / ss i ename json-str out-pfad py-skript cmd fh
+                       ergebnis-pfad first-block count)
+  (princ "\n[EXPORTCSV] Sammle alle Bloecke der Zeichnung...")
+
+  ;; Alle INSERT-Entities in der Zeichnung
+  (setq ss (ssget "X" (list (cons 0 "INSERT"))))
+  (if (null ss)
+    (progn
+      (princ "\n[EXPORTCSV] Keine Bloecke in der Zeichnung gefunden.")
+      (princ)
+    )
+    (progn
+      (setq count (sslength ss))
+      (princ (strcat "\n[EXPORTCSV] " (itoa count) " Bloecke gefunden."))
+
+      ;; JSON-Datei zusammenbauen
+      (setq out-pfad (strcat (getenv "DXFM_RESULTS") "/export_raw.json"))
+      (setq fh (open out-pfad "w"))
+      (if (null fh)
+        (progn
+          (princ (strcat "\n[EXPORTCSV] FEHLER: Kann Datei nicht oeffnen: " out-pfad))
+          (princ)
+        )
+        (progn
+          (write-line "[" fh)
+          (setq i 0)
+          (setq first-block T)
+          (while (setq ename (ssname ss i))
+            (if (not first-block)
+              (write-line "," fh)
+            )
+            (setq json-str (csv:block-to-json ename))
+            (write-line json-str fh)
+            (setq first-block nil)
+            (setq i (1+ i))
+          )
+          (write-line "]" fh)
+          (close fh)
+          (princ (strcat "\n[EXPORTCSV] JSON geschrieben: " out-pfad))
+
+          ;; Python-Skript aufrufen
+          (setq py-skript (strcat (getenv "DXFM_LIB") "/export_csv.py"))
+          (if (findfile py-skript)
+            (progn
+              (setq ergebnis-pfad (strcat (getenv "DXFM_RESULTS") "/export.csv"))
+              (setq cmd (strcat "python \"" py-skript "\""
+                                " \"" out-pfad "\""
+                                " \"" (getenv "DXFM_DATA") "\""
+                                " \"" ergebnis-pfad "\""))
+              (princ (strcat "\n[EXPORTCSV] Rufe Python auf..."))
+              (command "_.SHELL" cmd)
+              (if (findfile ergebnis-pfad)
+                (princ (strcat "\n[EXPORTCSV] CSV erstellt: " ergebnis-pfad))
+                (princ "\n[EXPORTCSV] WARNUNG: CSV-Datei wurde nicht erzeugt.")
+              )
+            )
+            (princ (strcat "\n[EXPORTCSV] FEHLER: Python-Skript nicht gefunden: " py-skript))
+          )
+        )
+      )
+    )
+  )
   (princ)
 )