diff --git a/tableformat.py b/tableformat.py
index af3a9b7..c47f153 100644
--- a/tableformat.py
+++ b/tableformat.py
@@ -49,7 +49,20 @@ class HTMLTableFormatter(TableFormatter):
         return self._printer(rowdata, "td")
 
 
-def create_formatter(name):
+class ColumnFormatMixin:
+    formats = []
+
+    def row(self, rowdata):
+        rowdata = [(fmt % d) for fmt, d in zip(self.formats, rowdata)]
+        super().row(rowdata)
+
+
+class UpperHeadersMixin:
+    def headings(self, headers):
+        super().headings([h.upper() for h in headers])
+
+
+def create_formatter(name, column_formats=None, upper_headers=False):
     formatters = {
         "text": TextTableFormatter,
         "csv": CSVTableFormatter,
@@ -58,6 +71,18 @@ def create_formatter(name):
     formatter = formatters.get(name, None)
     if not name:
         raise ValueError(f'formatter named "{name}" not implemented')
+    if upper_headers:
+
+        class _UpperFormatter(UpperHeadersMixin, formatter):
+            pass
+
+        formatter = _UpperFormatter
+    if column_formats:
+
+        class _ColumnFormatter(ColumnFormatMixin, formatter):
+            formats = column_formats
+
+        formatter = _ColumnFormatter
     return formatter()