diff --git a/source/tests/DumpTestSuite.h b/source/tests/DumpTestSuite.h
index 90fb42df..fb41eba1 100644
--- a/source/tests/DumpTestSuite.h
+++ b/source/tests/DumpTestSuite.h
@@ -19,7 +19,7 @@ public:
     void test_dump_sheet_title()
     {
         xlnt::workbook wb3;
-        wb3.load("C:/Users/taf656/Desktop/a.xlsx");
+        wb3.load("/Users/thomas/Desktop/a.xlsx");
 
         xlnt::workbook wb(xlnt::optimized::write);
         auto ws = wb.create_sheet("Test1");
@@ -102,7 +102,7 @@ public:
     {
         xlnt::string_table_builder sb;
 
-        std::unordered_map<std::string, int> result = {{"a", 0}, {"b", 1}, {"c", 2}, {"d", 3}};
+        std::vector<std::pair<std::string, int>> result = {{"a", 0}, {"b", 1}, {"c", 2}, {"d", 3}};
 
         for(auto pair : result)
         {
diff --git a/source/tests/WorksheetTestSuite.h b/source/tests/WorksheetTestSuite.h
index 43153001..3c5c7dc0 100644
--- a/source/tests/WorksheetTestSuite.h
+++ b/source/tests/WorksheetTestSuite.h
@@ -109,7 +109,7 @@ public:
     void test_cell_alternate_coordinates()
     {
         xlnt::worksheet ws(wb);
-        auto cell = ws.cell(8, 4);
+        auto cell = ws.cell(4, 8);
         TS_ASSERT_EQUALS("E9", cell.get_coordinate());
     }
 
@@ -215,7 +215,7 @@ public:
         TS_ASSERT_EQUALS(vals[0][0], "This is A1");
         TS_ASSERT_EQUALS(vals[0][1], "This is B1");
         TS_ASSERT_EQUALS(vals[1][0], "This is A2");
-        TS_ASSERT_EQUALS(vals[1][1], "This is A2");
+        TS_ASSERT_EQUALS(vals[1][1], "This is B2");
     }
 
     void test_rows()
diff --git a/source/tests/runner-autogen.cpp b/source/tests/runner-autogen.cpp
index 0502444b..fa175fc7 100644
--- a/source/tests/runner-autogen.cpp
+++ b/source/tests/runner-autogen.cpp
@@ -21,7 +21,7 @@ int main( int argc, char *argv[] ) {
     return status;
 }
 bool suite_CellTestSuite_init = false;
-#include "C:\Users\taf656\Development\xlnt\source\tests\CellTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/CellTestSuite.h"
 
 static CellTestSuite suite_CellTestSuite;
 
@@ -184,7 +184,7 @@ public:
  void runTest() { suite_CellTestSuite.test_is_not_date_color_format(); }
 } testDescription_suite_CellTestSuite_test_is_not_date_color_format;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\ChartTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/ChartTestSuite.h"
 
 static ChartTestSuite suite_ChartTestSuite;
 
@@ -275,7 +275,7 @@ public:
  void runTest() { suite_ChartTestSuite.test_write_chart_scatter(); }
 } testDescription_suite_ChartTestSuite_test_write_chart_scatter;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\DumpTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/DumpTestSuite.h"
 
 static DumpTestSuite suite_DumpTestSuite;
 
@@ -318,7 +318,7 @@ public:
  void runTest() { suite_DumpTestSuite.test_append_after_save(); }
 } testDescription_suite_DumpTestSuite_test_append_after_save;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\IterTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/IterTestSuite.h"
 
 static IterTestSuite suite_IterTestSuite;
 
@@ -367,7 +367,7 @@ public:
  void runTest() { suite_IterTestSuite.test_read_single_cell_date(); }
 } testDescription_suite_IterTestSuite_test_read_single_cell_date;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\NamedRangeTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/NamedRangeTestSuite.h"
 
 static NamedRangeTestSuite suite_NamedRangeTestSuite;
 
@@ -458,7 +458,7 @@ public:
  void runTest() { suite_NamedRangeTestSuite.test_can_be_saved(); }
 } testDescription_suite_NamedRangeTestSuite_test_can_be_saved;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\NullableTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/NullableTestSuite.h"
 
 static NullableTestSuite suite_NullableTestSuite;
 
@@ -495,7 +495,7 @@ public:
  void runTest() { suite_NullableTestSuite.test_copy_constructor(); }
 } testDescription_suite_NullableTestSuite_test_copy_constructor;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\NumberFormatTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/NumberFormatTestSuite.h"
 
 static NumberFormatTestSuite suite_NumberFormatTestSuite;
 
@@ -598,7 +598,7 @@ public:
  void runTest() { suite_NumberFormatTestSuite.test_mac_date(); }
 } testDescription_suite_NumberFormatTestSuite_test_mac_date;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\PasswordHashTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/PasswordHashTestSuite.h"
 
 static PasswordHashTestSuite suite_PasswordHashTestSuite;
 
@@ -617,7 +617,7 @@ public:
  void runTest() { suite_PasswordHashTestSuite.test_sheet_protection(); }
 } testDescription_suite_PasswordHashTestSuite_test_sheet_protection;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\PropsTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/PropsTestSuite.h"
 
 static PropsTestSuite suite_PropsTestSuite;
 
@@ -666,7 +666,7 @@ public:
  void runTest() { suite_PropsTestSuite.test_write_properties_app(); }
 } testDescription_suite_PropsTestSuite_test_write_properties_app;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\ReadTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/ReadTestSuite.h"
 
 static ReadTestSuite suite_ReadTestSuite;
 
@@ -799,7 +799,7 @@ public:
  void runTest() { suite_ReadTestSuite.test_read_date_value(); }
 } testDescription_suite_ReadTestSuite_test_read_date_value;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\StringsTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/StringsTestSuite.h"
 
 static StringsTestSuite suite_StringsTestSuite;
 
@@ -830,7 +830,7 @@ public:
  void runTest() { suite_StringsTestSuite.test_formatted_string_table(); }
 } testDescription_suite_StringsTestSuite_test_formatted_string_table;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\StyleTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/StyleTestSuite.h"
 
 static StyleTestSuite suite_StyleTestSuite;
 
@@ -927,7 +927,7 @@ public:
  void runTest() { suite_StyleTestSuite.test_read_cell_style(); }
 } testDescription_suite_StyleTestSuite_test_read_cell_style;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\ThemeTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/ThemeTestSuite.h"
 
 static ThemeTestSuite suite_ThemeTestSuite;
 
@@ -940,7 +940,7 @@ public:
  void runTest() { suite_ThemeTestSuite.test_write_theme(); }
 } testDescription_suite_ThemeTestSuite_test_write_theme;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\UnicodeTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/UnicodeTestSuite.h"
 
 static UnicodeTestSuite suite_UnicodeTestSuite;
 
@@ -953,7 +953,7 @@ public:
  void runTest() { suite_UnicodeTestSuite.test_read_workbook_with_unicode_character(); }
 } testDescription_suite_UnicodeTestSuite_test_read_workbook_with_unicode_character;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\WorkbookTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/WorkbookTestSuite.h"
 
 static WorkbookTestSuite suite_WorkbookTestSuite;
 
@@ -1182,7 +1182,7 @@ public:
  void runTest() { suite_WorkbookTestSuite.test_good_encoding(); }
 } testDescription_suite_WorkbookTestSuite_test_good_encoding;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\WorksheetTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/WorksheetTestSuite.h"
 
 static WorksheetTestSuite suite_WorksheetTestSuite;
 
@@ -1357,7 +1357,7 @@ public:
  void runTest() { suite_WorksheetTestSuite.test_printer_settings(); }
 } testDescription_suite_WorksheetTestSuite_test_printer_settings;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\WriteTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/WriteTestSuite.h"
 
 static WriteTestSuite suite_WriteTestSuite;
 
@@ -1490,7 +1490,7 @@ public:
  void runTest() { suite_WriteTestSuite.test_short_number(); }
 } testDescription_suite_WriteTestSuite_test_short_number;
 
-#include "C:\Users\taf656\Development\xlnt\source\tests\ZipFileTestSuite.h"
+#include "/Users/thomas/Development/xlnt/source/tests/ZipFileTestSuite.h"
 
 static ZipFileTestSuite suite_ZipFileTestSuite;
 
diff --git a/source/xlnt.cpp b/source/xlnt.cpp
index 6af0a6c2..04ae85cd 100644
--- a/source/xlnt.cpp
+++ b/source/xlnt.cpp
@@ -746,8 +746,7 @@ coordinate cell::coordinate_from_string(const std::string &coord_string)
             }
             else
             {
-                std::string msg = "Invalid cell coordinates (" + coord_string + ")";
-                throw std::runtime_error(msg);
+                throw bad_cell_coordinates(coord_string);
             }
         }
         else
@@ -758,8 +757,7 @@ coordinate cell::coordinate_from_string(const std::string &coord_string)
             }
             else if(!(std::isdigit(character, std::locale::classic()) || character == '$'))
             {
-                std::string msg = "Invalid cell coordinates (" + coord_string + ")";
-                throw std::runtime_error(msg);
+                throw bad_cell_coordinates(coord_string);
             }
         }
     }
@@ -773,8 +771,7 @@ coordinate cell::coordinate_from_string(const std::string &coord_string)
 
     if(result.row < 1)
     {
-        std::string msg = "Invalid cell coordinates (" + coord_string + ")";
-        throw std::runtime_error(msg);
+        throw bad_cell_coordinates(result.row, cell::column_index_from_string(result.column));
     }
 
     return result;
@@ -925,9 +922,9 @@ xlnt::cell::type cell::get_data_type() const
     return root_->type;
 }
 
-xlnt::cell cell::get_offset(int column_offset, int row_offset)
+xlnt::cell cell::get_offset(int row_offset, int column_offset)
 {
-    return worksheet(root_->parent_worksheet).cell(root_->row + row_offset, root_->column + column_offset);
+    return worksheet(root_->parent_worksheet).cell(root_->column + column_offset, root_->row + row_offset);
 }
 
 cell &cell::operator=(const cell &rhs)
@@ -1061,7 +1058,14 @@ struct worksheet_struct
 
     void set_freeze_panes(cell top_left_cell)
     {
-        freeze_panes_ = top_left_cell;
+        if(top_left_cell.get_address() == "A1")
+        {
+            unfreeze_panes();
+        }
+        else
+        {
+            freeze_panes_ = top_left_cell;
+        }
     }
 
     void set_freeze_panes(const std::string &top_left_coordinate)
@@ -1086,7 +1090,7 @@ struct worksheet_struct
         return cell_map_[coordinate];
     }
 
-    xlnt::cell cell(int row, int column)
+    xlnt::cell cell(int column, int row)
     {
         return cell(xlnt::cell::get_column_letter(column + 1) + std::to_string(row + 1));
     }
@@ -1122,6 +1126,11 @@ struct worksheet_struct
     xlnt::range range(const std::string &range_string, int row_offset, int column_offset)
     {
         xlnt::range r;
+        
+        if(parent_.has_named_range(range_string, worksheet(this)))
+        {
+            return range(parent_.get_named_range(range_string, worksheet(this)).get_range_string(), row_offset, column_offset);
+        }
 
         auto colon_index = range_string.find(':');
 
@@ -1137,6 +1146,12 @@ struct worksheet_struct
                 min_coord.column = xlnt::cell::get_column_letter(xlnt::cell::column_index_from_string(min_coord.column) + column_offset);
                 max_coord.column = xlnt::cell::get_column_letter(xlnt::cell::column_index_from_string(max_coord.column) + column_offset);
             }
+            
+            if(row_offset != 0)
+            {
+                min_coord.row = min_coord.row + row_offset;
+                max_coord.row = max_coord.row + row_offset;
+            }
 
             std::unordered_map<int, std::string> column_cache;
 
@@ -1145,11 +1160,11 @@ struct worksheet_struct
             {
                 column_cache[i] = xlnt::cell::get_column_letter(i);
             }
-            for(int row = min_coord.row + row_offset; row <= max_coord.row + row_offset; row++)
+            for(int row = min_coord.row; row <= max_coord.row; row++)
             {
                 r.push_back(std::vector<xlnt::cell>());
-                for(int column = xlnt::cell::column_index_from_string(min_coord.column) + column_offset;
-                    column <= xlnt::cell::column_index_from_string(max_coord.column) + column_offset; column++)
+                for(int column = xlnt::cell::column_index_from_string(min_coord.column);
+                    column <= xlnt::cell::column_index_from_string(max_coord.column); column++)
                 {
                     std::string coordinate = column_cache[column] + std::to_string(row);
                     r.back().push_back(cell(coordinate));
@@ -1224,33 +1239,41 @@ struct worksheet_struct
     void append(const std::vector<std::string> &cells)
     {
         int row = get_highest_row();
-        if(!cell_map_.empty())
+        if(cell_map_.size() != 0)
         {
-            row += 1;
+            row++;
         }
         int column = 0;
         for(auto cell : cells)
         {
-            this->cell(row, column++) = cell;
+            this->cell(column++, row) = cell;
         }
     }
 
     void append(const std::unordered_map<std::string, std::string> &cells)
     {
         int row = get_highest_row();
+        if(cell_map_.size() != 0)
+        {
+            row++;
+        }
         for(auto cell : cells)
         {
-            int column = xlnt::cell::column_index_from_string(cell.second);
-            this->cell(row, column) = cell.second;
+            int column = xlnt::cell::column_index_from_string(cell.first) - 1;
+            this->cell(column, row) = cell.second;
         }
     }
 
     void append(const std::unordered_map<int, std::string> &cells)
     {
         int row = get_highest_row();
+        if(cell_map_.size() != 0)
+        {
+            row++;
+        }
         for(auto cell : cells)
         {
-            this->cell(row, cell.first) = cell.second;
+            this->cell(cell.first, row) = cell.second;
         }
     }
 
@@ -1781,6 +1804,18 @@ worksheet workbook::get_active_sheet()
 {
     return worksheets_[active_sheet_index_];
 }
+    
+bool workbook::has_named_range(const std::string &name, xlnt::worksheet ws) const
+{
+    for(auto named_range : named_ranges_)
+    {
+        if(named_range.first == name && named_range.second.get_parent_worksheet() == ws)
+        {
+            return true;
+        }
+    }
+    return false;
+}
 
 worksheet workbook::create_sheet()
 {
@@ -1795,9 +1830,30 @@ worksheet workbook::create_sheet()
     return get_sheet_by_name(title);
 }
 
-void workbook::create_named_range(const std::string &/*range_string*/, worksheet /*ws*/, const std::string &/*name*/)
+void workbook::create_named_range(const std::string &name, worksheet range_owner, const std::string &range_string)
 {
-
+    for(auto ws : worksheets_)
+    {
+        if(ws == range_owner)
+        {
+            named_ranges_[name] = named_range(range_owner, range_string);
+            return;
+        }
+    }
+    
+    throw std::runtime_error("worksheet isn't owned by this workbook");
+}
+    
+named_range workbook::get_named_range(const std::string &name, worksheet ws)
+{
+    for(auto named_range : named_ranges_)
+    {
+        if(named_range.first == name && named_range.second.get_parent_worksheet() == ws)
+        {
+            return named_range.second;
+        }
+    }
+    throw std::runtime_error("doesn't exist");
 }
 
 void workbook::load(const std::string &filename)
@@ -2075,14 +2131,28 @@ std::string sheet_protection::hash_password(const std::string &plaintext_passwor
     return hashed;
 }
 
-int string_table::operator[](const std::string &/*key*/) const
+int string_table::operator[](const std::string &key) const
 {
-    return 0;
+    for(std::size_t i = 0; i < strings_.size(); i++)
+    {
+        if(key == strings_[i])
+        {
+            return (int)i;
+        }
+    }
+    throw std::runtime_error("bad string");
 }
 
-void string_table_builder::add(const std::string &/*string*/)
+void string_table_builder::add(const std::string &string)
 {
-
+    for(std::size_t i = 0; i < table_.strings_.size(); i++)
+    {
+        if(string == table_.strings_[i])
+        {
+            return;
+        }
+    }
+    table_.strings_.push_back(string);
 }
 
 }
diff --git a/source/xlnt.h b/source/xlnt.h
index 9deea297..7efa61b7 100644
--- a/source/xlnt.h
+++ b/source/xlnt.h
@@ -177,6 +177,12 @@ public:
     {
 
     }
+    
+    bad_cell_coordinates(const std::string &coord_string)
+    : std::runtime_error(std::string("bad cell coordinates: (") + coord_string + ")")
+    {
+        
+    }
 };
 
 class zip_file
@@ -481,6 +487,9 @@ class string_table
 {
 public:
     int operator[](const std::string &key) const;
+private:
+    friend class string_table_builder;
+    std::vector<std::string> strings_;
 };
 
 class string_table_builder
@@ -944,6 +953,7 @@ class worksheet
 {
 public:
     worksheet(workbook &parent);
+    worksheet(worksheet_struct *root);
 
     void operator=(const worksheet &other);
     xlnt::cell operator[](const std::string &address);
@@ -985,19 +995,20 @@ public:
 private:
     friend class workbook;
     friend class cell;
-    worksheet(worksheet_struct *root);
     worksheet_struct *root_;
 };
 
 class named_range
 {
 public:
-    named_range(const std::string &name);
+    named_range() : parent_worksheet_(nullptr), range_string_("") {}
+    named_range(worksheet ws, const std::string &range_string) : parent_worksheet_(ws), range_string_(range_string) {}
+    std::string get_range_string() const { return range_string_; }
+    worksheet get_parent_worksheet() { return parent_worksheet_; }
 
 private:
-    friend class worksheet;
-    named_range(named_range_struct *root);
-    named_range_struct *root_;
+    worksheet parent_worksheet_;
+    std::string range_string_;
 };
 
 class drawing
@@ -1068,7 +1079,8 @@ public:
     void create_named_range(const std::string &name, worksheet worksheet, const std::string &range_string);
     std::vector<named_range> get_named_ranges();
     void add_named_range(named_range named_range);
-    void get_named_range(const std::string &name);
+    bool has_named_range(const std::string &name, worksheet ws) const;
+    named_range get_named_range(const std::string &name, worksheet ws);
     void remove_named_range(named_range named_range);
     
     //serialization
@@ -1088,7 +1100,7 @@ private:
     int active_sheet_index_;
     encoding_type encoding_;
     std::vector<worksheet> worksheets_;
-    std::vector<named_range> named_ranges_;
+    std::unordered_map<std::string, named_range> named_ranges_;
     std::vector<relationship> relationships_;
     std::vector<drawing> drawings_;
 };