diff --git a/hs-excelx.cabal b/hs-excelx.cabal
--- a/hs-excelx.cabal
+++ b/hs-excelx.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                hs-excelx
-version:             0.5.1.0
+version:             0.5.2.0
 synopsis:            HS-Excelx provides basic read-only access to Excel 2007 and 2010 documents in XLSX format.
 -- description:         
 license:             BSD3
diff --git a/src/Data/Excelx.hs b/src/Data/Excelx.hs
--- a/src/Data/Excelx.hs
+++ b/src/Data/Excelx.hs
@@ -1,8 +1,6 @@
 {-# LANGUAGE QuasiQuotes, OverloadedStrings, FlexibleContexts, FlexibleInstances #-}
 
-module Data.Excelx(openExcelx, toExcelx,
-                   sheet, cell, row, rows, column,
-                   fromCell) where
+module Data.Excelx where
 
 import Data.Maybe
 import Data.Monoid
@@ -28,10 +26,6 @@
           | BlankCell Position 
           | NoCell Position deriving Show
 
-valueCell :: Cell -> Cell
-valueCell (FormulaCell _ _ valuecell) = valuecell
-valueCell valuecell = valuecell
-
 class FromCell a where
     fromCell :: Cell -> a
 
@@ -80,6 +74,10 @@
     fromCell c = case valueCell c of
                    NoCell pos -> Left pos
                    _ -> Right $ fromCell c
+
+valueCell :: Cell -> Cell
+valueCell (FormulaCell _ _ valuecell) = valuecell
+valueCell valuecell = valuecell
 
 catCells :: [Cell] -> [Cell]
 catCells cells = filter noCell cells