diff --git a/aesop/ovvpfile.py b/aesop/ovvpfile.py
index 471c06c6..72150fae 100644
--- a/aesop/ovvpfile.py
+++ b/aesop/ovvpfile.py
@@ -1,81 +1,81 @@
 # -*- coding: utf-8 -*-
 
 try:
-    from django.http import HttpResponse
-    from django.utils.encoding import force_text
+	from django.http import HttpResponse
+	from django.utils.encoding import force_text
 except:
-    force_text = str
+	force_text = str
 
 
 class OvvpFile(object):
-    def __init__(self):
-        # { header: value, ... }
-        self.headers = {}
-        # [ 'column-name', ... ]
-        self.columns = []
-        # [ { column: value, ...}, ...]
-        self.rows = []
+	def __init__(self):
+		# { header: value, ... }
+		self.headers = {}
+		# [ 'column-name', ... ]
+		self.columns = []
+		# [ { column: value, ...}, ...]
+		self.rows = []
 
-    def to_lines(self):
-        # header
-        for hk in sorted(self.headers.keys()):
-            yield '%s\t%s\n' % (hk, self.headers[hk])
-        yield '\n'
-        # columns
-        yield '\t'.join([c for c in self.columns]) + '\n'
-        # rows
-        for r in self.rows:
-            yield '\t'.join([force_text(r[c]) for c in self.columns]) + '\n'
+	def to_lines(self):
+		# header
+		for hk in sorted(self.headers.keys()):
+			yield '%s\t%s\n' % (hk, self.headers[hk])
+		yield '\n'
+		# columns
+		yield '\t'.join([c for c in self.columns]) + '\n'
+		# rows
+		for r in self.rows:
+			yield '\t'.join([force_text(r[c]) for c in self.columns]) + '\n'
 
-    def to_string(self):
-        return ''.join(self.to_lines())
+	def to_string(self):
+		return ''.join(self.to_lines())
 
-    def to_HttpResponse(self):
-        return HttpResponse(self.to_string(), content_type='text/plain; charset=utf-8')
+	def to_HttpResponse(self):
+		return HttpResponse(self.to_string(), content_type='text/plain; charset=utf-8')
 
-    def parse_from(self, source, with_headers=True):
-        "Parse data from file, string or line iterator, overwriting self"
-        if isinstance(source, str) or isinstance(source, unicode):
-            return self.parse_from(source.split('\n'))
-            
-        it = iter(source)
+	def parse_from(self, source, with_headers=True):
+		"Parse data from file, string or line iterator, overwriting self"
+		if isinstance(source, str) or isinstance(source, unicode):
+			return self.parse_from(source.split('\n'))
+			
+		it = iter(source)
 
-        # header
-        self.headers = {}
-        if with_headers:
-            for r in it:
-                if isinstance(r, str):
-                    r = r.decode('utf8')
-                assert isinstance(r, unicode)
-                r = r.rstrip('\n')
-                if r == u"":
-                    break
-                k, v = r.split(u'\t', 1)
-                self.headers[k] = v
+		# header
+		self.headers = {}
+		if with_headers:
+			for r in it:
+				if isinstance(r, str):
+					r = r.decode('utf8')
+				assert isinstance(r, unicode)
+				r = r.rstrip('\n')
+				if r == u"":
+					break
+				k, v = r.split(u'\t', 1)
+				self.headers[k] = v
 
-        # columns
-        r = it.next()
-        if isinstance(r, str):
-            r = r.decode('utf8')
-        self.columns = [cn.strip() for cn in r.split(u'\t') if cn.strip() != ""]
+		# columns
+		r = it.next()
+		if isinstance(r, str):
+			r = r.decode('utf8')
+		self.columns = [cn.strip() for cn in r.split(u'\t') if cn.strip() != ""]
 
-        # rows
-        self.rows = []
-        for r in it:
-            if isinstance(r, str):
-                r = r.decode('utf8')
-            r = r.rstrip('\n')
-            if not r:
-                break
-            rtup = r.split(u'\t')
-            rdict = {}
-            for ci in range(len(self.columns)):
-                rdict[self.columns[ci]] = rtup[ci]
-            self.rows.append(rdict)
-        
+		# rows
+		self.rows = []
+		for r in it:
+			if isinstance(r, str):
+				r = r.decode('utf8')
+			r = r.rstrip('\n')
+			if not r:
+				break
+			rtup = r.split(u'\t')
+			rdict = {}
+			for ci in range(len(self.columns)):
+				rdict[self.columns[ci]] = rtup[ci]
+			self.rows.append(rdict)
+		
 
 
 def parse(source, with_headers=True):
-    o = OvvpFile()
-    o.parse_from(source, with_headers=with_headers)
-    return o
+	o = OvvpFile()
+	o.parse_from(source, with_headers=with_headers)
+	return o