diff --git a/auto_archive.py b/auto_archive.py
index d636cbd..cbe0744 100644
--- a/auto_archive.py
+++ b/auto_archive.py
@@ -35,7 +35,6 @@ def update_sheet(gw, row, result: archivers.ArchiveResult):
     batch_if_valid('timestamp', result.timestamp)
 
     gw.update_batch(update)
-    
 
 
 def process_sheet(sheet):
@@ -54,11 +53,11 @@ def process_sheet(sheet):
         logger.info(f'Opening worksheet {ii}: "{wks.title}"')
         gw = GWorksheet(wks)
 
-        if not gw.col_exists("url"):
+        if not gw.col_exists('url'):
             logger.warning(f'No "Media URL" column found, skipping worksheet {wks.title}')
             continue
 
-        if not gw.col_exists("status"):
+        if not gw.col_exists('status'):
             logger.warning("No 'Archive status' column found, skipping")
             continue
 
@@ -110,14 +109,14 @@ def process_sheet(sheet):
 
 def main():
     parser = argparse.ArgumentParser(
-        description="Automatically archive social media videos from a Google Sheets document")
-    parser.add_argument("--sheet", action="store", dest="sheet")
+        description='Automatically archive social media videos from a Google Sheets document')
+    parser.add_argument('--sheet', action='store', dest='sheet')
     args = parser.parse_args()
 
-    logger.info("Opening document " + args.sheet)
+    logger.info(f'Opening document {args.sheet}')
 
     process_sheet(args.sheet)
 
 
-if __name__ == "__main__":
+if __name__ == '__main__':
     main()
diff --git a/gworksheet.py b/gworksheet.py
index 721bb01..496ddcc 100644
--- a/gworksheet.py
+++ b/gworksheet.py
@@ -68,30 +68,3 @@ class GWorksheet:
     def to_a1(self, row: int, col: int):
         # row, col are 1-based
         return utils.rowcol_to_a1(row, col)
-
-    # def index_to_col(self, index):
-    #     alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-
-    #     if index > 25:
-    #         t = index
-    #         dig = 0
-    #         while t > 25:
-    #             t = math.floor(t / 26)
-    #             dig += 1
-    #         return alphabet[t - 1] + self.index_to_col(index - t * int(math.pow(26, dig)))
-    #     else:
-    #         return alphabet[index]
-
-    # def col_to_index(self, col):
-    #     col = list(col)
-    #     ndigits = len(col)
-    #     alphabet = ' ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-    #     v = 0
-    #     i = ndigits - 1
-
-    #     for digit in col:
-    #         index = alphabet.find(digit)
-    #         v += (26 ** i) * index
-    #         i -= 1
-
-    #     return v - 1