diff --git a/src/solver.py b/src/book_solver.py
similarity index 91%
rename from src/solver.py
rename to src/book_solver.py
index d95ef03..5d3ed1e 100644
--- a/src/solver.py
+++ b/src/book_solver.py
@@ -137,3 +137,15 @@ class BookSolver:
             self.logger_object.log_error_to_main_log(str(exc))
             raise exc
 
+    def conversion_local(self):
+        try:
+            with open('tmp.json') as f:
+                d = json.load(f)
+            self.send_json_content_to_server(d)
+            self.logger_object.log(f'End of the conversion to LawCarta format. Check {self.output_path}.')
+
+        except Exception as exc:
+            self.status_wrapper.set_error()
+            self.logger_object.log('Error has occurred while conversion.', logging.ERROR)
+            self.logger_object.log_error_to_main_log(str(exc))
+            raise exc
\ No newline at end of file
diff --git a/src/docx_solver.py b/src/docx_solver.py
index 93cdc2e..b7c5be6 100644
--- a/src/docx_solver.py
+++ b/src/docx_solver.py
@@ -8,7 +8,7 @@ from threading import Event
 from bs4 import BeautifulSoup
 from html_docx_preprocessor import HTMLDocxPreprocessor
 from libra_html2json_converter import LibraHTML2JSONConverter
-from src.solver import BookSolver
+from src.book_solver import BookSolver
 
 
 class DocxBook(BookSolver):
diff --git a/src/epub_solver.py b/src/epub_solver.py
index 7cece30..75609fe 100644
--- a/src/epub_solver.py
+++ b/src/epub_solver.py
@@ -1,5 +1,5 @@
 from epub_converter import EpubConverter
-from src.solver import BookSolver
+from src.book_solver import BookSolver
 
 
 class EpubBook(BookSolver):