diff --git a/frappe/core/doctype/data_import/importer.py b/frappe/core/doctype/data_import/importer.py
index 9a801cfc19..a9e23a987d 100644
--- a/frappe/core/doctype/data_import/importer.py
+++ b/frappe/core/doctype/data_import/importer.py
@@ -574,7 +574,7 @@ class ImportFile:
 	######
 
 	def read_file(self, file_path):
-		extn = file_path.split(".")[1]
+		extn = os.path.splitext(file_path)[1][1:]
 
 		file_content = None
 		with io.open(file_path, mode="rb") as f: