diff --git a/.gitignore b/.gitignore
index f304bf6..15403fd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,5 +9,4 @@ chapters/zilinois_lung_with_celltypist/
 *.tiledb
 *_cache
 *_files
-*.rds
 tutorials/cache/*
\ No newline at end of file
diff --git a/tutorials/hg38_exons_by_tx.rds b/tutorials/hg38_exons_by_tx.rds
new file mode 100644
index 0000000..16ff55c
Binary files /dev/null and b/tutorials/hg38_exons_by_tx.rds differ