diff --git a/app/data/stacks/fixturenet-eth-tx/README.md b/app/data/stacks/fixturenet-eth-tx/README.md
index 838ada53..9af9ee3d 100644
--- a/app/data/stacks/fixturenet-eth-tx/README.md
+++ b/app/data/stacks/fixturenet-eth-tx/README.md
@@ -18,3 +18,20 @@ $ laconic-so --stack fixturenet-eth-tx setup-repositories
 $ laconic-so --stack fixturenet-eth-tx build-containers
 $ laconic-so --stack fixturenet-eth-tx deploy up
 ```
+
+## Export the ethdb (optional)
+
+It is easy to export data from the fixturenet for offline processing of the raw ethdb files (eg, by eth-statediff-service) using the `export-ethdb.sh` script.
+
+For example:
+
+```
+❯ app/data/container-build/cerc-fixturenet-eth-lighthouse/scripts/export-ethdb.sh 500
+Waiting for geth to generate DAG.... done
+Waiting for beacon phase0.... done
+Waiting for beacon altair.... done
+Waiting for beacon bellatrix pre-merge.... done
+Waiting for beacon bellatrix merge.... done
+Waiting for block number 500.... done
+Exporting ethdb.... ./ethdb.tgz
+```