diff --git a/export.py b/export.py
index 26f1d38..5927541 100644
--- a/export.py
+++ b/export.py
@@ -71,6 +71,7 @@ def subprrun(jobs, headers):
             if divs:
                 myfs.write("\n")
         del divs
+        myfs.close()
         del myfs
 
         if soup.find("li", id="captions-editor-nav-metadata")["data-state"] != "locked":
diff --git a/worker.py b/worker.py
index 384b98f..2956189 100644
--- a/worker.py
+++ b/worker.py
@@ -161,7 +161,7 @@ while True:
 
     subthreads = []
 
-    for r in range(5):
+    for r in range(50):
         subrunthread = Thread(target=subprrun, args=(subtjobs,headers))
         subrunthread.start()
         subthreads.append(subrunthread)