diff --git a/Classes/PHPExcel/Reader/OOCalc.php b/Classes/PHPExcel/Reader/OOCalc.php
index aa296098..8343e377 100644
--- a/Classes/PHPExcel/Reader/OOCalc.php
+++ b/Classes/PHPExcel/Reader/OOCalc.php
@@ -572,7 +572,7 @@ class PHPExcel_Reader_OOCalc extends PHPExcel_Reader_Abstract implements PHPExce
 												$type = PHPExcel_Cell_DataType::TYPE_NUMERIC;
 												$dataValue = (float) $cellDataOfficeAttributes['value'];
 												if (floor($dataValue) == $dataValue) {
-													if ($dataValue = (integer) $dataValue)
+													if ($dataValue == (integer) $dataValue)
 														$dataValue = (integer) $dataValue;
 													else
 														$dataValue = (float) $dataValue;
diff --git a/changelog.txt b/changelog.txt
index 3eca4dc1..ca6a42e0 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -24,19 +24,19 @@
 
 
 Fixed in develop branch for release v1.8.0:
-- Bugfix:   (MBaker)    Work item 19830  - Undefined variable: fileHandle in CSV Reader
-- Bugfix:   (MBaker)    Work item 19968  - Out of memory in style/supervisor.php
-- Bugfix:   (MBaker)                     - Style error with merged cells in PDF Writer
-- Bugfix:   (MBaker)                     - Problem with cloning worksheets
-- Feature:  (amerov)                     - Implementation of the Excel HLOOKUP() function
-- Feature:  (MBaker)                     - Added "Quote Prefix" to style settings (Excel2007 Reader and Writer only)
-- Feature:  (MBaker)                     - Added Horizontal FILL alignment for Excel5 and Excel2007 Readers/Writers, and Horizontal DISTRIBUTED alignment for Excel2007 Reader/Writer
-- General:  (cdhutch)   Work item 20055  - Remove array_shift in ReferenceHelper::insertNewBefore improves column or row delete speed
-- General:  (MBaker)                     - Improve stock chart handling and rendering, with help from Swashata Ghosh
-- General:  (MBaker)                     - Fix to calculation properties for Excel2007 so that the opening application will only recalculate on load
-                                             if it's actually required
-- General:  (MBaker)                     - Modified Excel2007 Writer to default preCalculateFormulas to false
-                                           Note that autosize columns will still recalculate affected formulae internally
+- Bugfix:   (MBaker)      Work item 19830   - Undefined variable: fileHandle in CSV Reader
+- Bugfix:   (MBaker)      Work item 19968   - Out of memory in style/supervisor.php
+- Bugfix:   (MBaker)                        - Style error with merged cells in PDF Writer
+- Bugfix:   (MBaker)                        - Problem with cloning worksheets
+- Bugfix:   (tavoarcila)  Work Item GH-259  - Bug fix reading Open Office files
+- Feature:  (amerov)                        - Implementation of the Excel HLOOKUP() function
+- Feature:  (MBaker)                        - Added "Quote Prefix" to style settings (Excel2007 Reader and Writer only)
+- Feature:  (MBaker)                        - Added Horizontal FILL alignment for Excel5 and Excel2007 Readers/Writers, and Horizontal DISTRIBUTED alignment for Excel2007 Reader/Writer
+- General:  (cdhutch)     Work item 20055   - Remove array_shift in ReferenceHelper::insertNewBefore improves column or row delete speed
+- General:  (MBaker)                        - Improve stock chart handling and rendering, with help from Swashata Ghosh
+- General:  (MBaker)                        - Fix to calculation properties for Excel2007 so that the opening application will only recalculate on load if it's actually required
+- General:  (MBaker)                        - Modified Excel2007 Writer to default preCalculateFormulas to false
+                                              Note that autosize columns will still recalculate affected formulae internally
 
 
 Fixed in develop branch for release v1.7.9: