diff --git a/examples/style/main.cpp b/examples/style/main.cpp
index 7ada464..57dd580 100644
--- a/examples/style/main.cpp
+++ b/examples/style/main.cpp
@@ -26,7 +26,22 @@ int main()
     sheet->write("C5", "=44+33", format2);
     sheet->write("D7", true, format2);
 
+    QXlsx::Format *format3 = workbook.addFormat();
+    format3->setFontBold(true);
+    format3->setFontColor(QColor(Qt::blue));
+    format3->setFontSize(20);
+    sheet->write(10, 0, "Hello Row Style");
+    sheet->write(10, 5, "Blue Color");
+    sheet->setRow(10, 40, format3);
+
+    QXlsx::Format *format4 = workbook.addFormat();
+    format4->setFontBold(true);
+    format4->setFontColor(QColor(Qt::magenta));
+    for (int row=20; row<40; row++)
+        for (int col=8; col<15; col++)
+            sheet->write(row, col, row+col);
+    sheet->setColumn(8, 15, 5.0, format4);
+
     workbook.save(DATA_PATH"TestStyle.xlsx");
-    workbook.save(DATA_PATH"TestStyle.zip");
     return 0;
 }
diff --git a/src/xlsxworksheet.cpp b/src/xlsxworksheet.cpp
index f9d147d..bb4f8f5 100755
--- a/src/xlsxworksheet.cpp
+++ b/src/xlsxworksheet.cpp
@@ -38,6 +38,55 @@
 
 namespace QXlsx {
 
+struct XlsxCellData
+{
+    enum CellDataType {
+        Blank,
+        String,
+        Number,
+        Formula,
+        ArrayFormula,
+        Boolean
+    };
+    XlsxCellData(const QVariant &data=QVariant(), CellDataType type=Blank, Format *format=0) :
+        value(data), dataType(type), format(format)
+    {
+
+    }
+
+    QVariant value;
+    QString formula;
+    CellDataType dataType;
+    Format *format;
+};
+
+struct XlsxRowInfo
+{
+    XlsxRowInfo(double height, Format *format, bool hidden) :
+        height(height), format(format), hidden(hidden)
+    {
+
+    }
+
+    double height;
+    Format *format;
+    bool hidden;
+};
+
+struct XlsxColumnInfo
+{
+    XlsxColumnInfo(int column_min, int column_max, double width, Format *format, bool hidden) :
+        column_min(column_min), column_max(column_max), width(width), format(format), hidden(hidden)
+    {
+
+    }
+    int column_min;
+    int column_max;
+    double width;
+    Format *format;
+    bool hidden;
+};
+
 /*!
  * \brief Worksheet::Worksheet
  * \param name Name of the worksheet
@@ -70,6 +119,21 @@ Worksheet::Worksheet(const QString &name, int index, Workbook *parent) :
     m_show_zeros = true;
 }
 
+Worksheet::~Worksheet()
+{
+    typedef QMap<int, XlsxCellData *> RowMap;
+    foreach (RowMap row, m_cellTable) {
+        foreach (XlsxCellData *item, row)
+            delete item;
+    }
+
+    foreach (XlsxRowInfo *row, m_rowsInfo)
+        delete row;
+
+    foreach (XlsxColumnInfo *col, m_colsInfo)
+        delete col;
+}
+
 bool Worksheet::isChartsheet() const
 {
     return false;
@@ -187,7 +251,7 @@ int Worksheet::writeString(int row, int column, const QString &value, Format *fo
     SharedStrings *sharedStrings = m_workbook->sharedStrings();
     int index = sharedStrings->addSharedString(content);
 
-    m_table[row][column] = XlsxCellData(index, XlsxCellData::String, format);
+    m_cellTable[row][column] = new XlsxCellData(index, XlsxCellData::String, format);
     return error;
 }
 
@@ -196,7 +260,7 @@ int Worksheet::writeNumber(int row, int column, double value, Format *format)
     if (checkDimensions(row, column))
         return -1;
 
-    m_table[row][column] = XlsxCellData(value, XlsxCellData::Number, format);
+    m_cellTable[row][column] = new XlsxCellData(value, XlsxCellData::Number, format);
     return 0;
 }
 
@@ -211,9 +275,9 @@ int Worksheet::writeFormula(int row, int column, const QString &content, Format
     if (formula.startsWith("="))
         formula.remove(0,1);
 
-    XlsxCellData data(result, XlsxCellData::Formula, format);
-    data.formula = formula;
-    m_table[row][column] = data;
+    XlsxCellData *data = new XlsxCellData(result, XlsxCellData::Formula, format);
+    data->formula = formula;
+    m_cellTable[row][column] = data;
 
     return error;
 }
@@ -223,7 +287,7 @@ int Worksheet::writeBlank(int row, int column, Format *format)
     if (checkDimensions(row, column))
         return -1;
 
-    m_table[row][column] = XlsxCellData(QVariant(), XlsxCellData::Blank, format);
+    m_cellTable[row][column] = new XlsxCellData(QVariant(), XlsxCellData::Blank, format);
     return 0;
 }
 
@@ -232,7 +296,7 @@ int Worksheet::writeBool(int row, int column, bool value, Format *format)
     if (checkDimensions(row, column))
         return -1;
 
-    m_table[row][column] = XlsxCellData(value, XlsxCellData::Boolean, format);
+    m_cellTable[row][column] = new XlsxCellData(value, XlsxCellData::Boolean, format);
     return 0;
 }
 
@@ -304,6 +368,22 @@ void Worksheet::saveToXmlFile(QIODevice *device)
     //    writer.writeAttribute("x14ac:dyDescent", "0.25");
     writer.writeEndElement();//sheetFormatPr
 
+    writer.writeStartElement("cols");
+    foreach (XlsxColumnInfo *col_info, m_colsInfo) {
+        writer.writeStartElement("col");
+        writer.writeAttribute("min", QString::number(col_info->column_min));
+        writer.writeAttribute("max", QString::number(col_info->column_max));
+        writer.writeAttribute("width", QString::number(col_info->width, 'g', 15));
+        if (col_info->format)
+            writer.writeAttribute("style", QString::number(col_info->format->xfIndex()));
+        if (col_info->hidden)
+            writer.writeAttribute("hidden", "1");
+        if (col_info->width)
+            writer.writeAttribute("customWidth", "1");
+        writer.writeEndElement();//col
+    }
+    writer.writeEndElement();//cols
+
     writer.writeStartElement("sheetData");
     if (m_dim_rowmax == INT32_MIN) {
         //If the max dimensions are equal to INT32_MIN, then there is no data to write
@@ -350,7 +430,7 @@ void Worksheet::writeSheetData(XmlStreamWriter &writer)
 {
     calculateSpans();
     for (int row_num = m_dim_rowmin; row_num <= m_dim_rowmax; row_num++) {
-        if (!(m_table.contains(row_num) || m_comments.contains(row_num))) {
+        if (!(m_cellTable.contains(row_num) || m_comments.contains(row_num) || m_rowsInfo.contains(row_num))) {
             //Only process rows with cell data / comments / formatting
             continue;
         }
@@ -360,14 +440,30 @@ void Worksheet::writeSheetData(XmlStreamWriter &writer)
         if (m_row_spans.contains(span_index))
             span = m_row_spans[span_index];
 
-        if (m_table.contains(row_num)) {
+        if (m_cellTable.contains(row_num)) {
             writer.writeStartElement("row");
             writer.writeAttribute("r", QString::number(row_num + 1));
+
             if (!span.isEmpty())
                 writer.writeAttribute("spans", span);
+
+            if (m_rowsInfo.contains(row_num)) {
+                XlsxRowInfo *rowInfo = m_rowsInfo[row_num];
+                if (rowInfo->format) {
+                    writer.writeAttribute("s", QString::number(rowInfo->format->xfIndex()));
+                    writer.writeAttribute("customFormat", "1");
+                }
+                if (rowInfo->height != 15) {
+                    writer.writeAttribute("ht", QString::number(rowInfo->height));
+                    writer.writeAttribute("customHeight", "1");
+                }
+                if (rowInfo->hidden)
+                    writer.writeAttribute("hidden", "1");
+            }
+
             for (int col_num = m_dim_colmin; col_num <= m_dim_colmax; col_num++) {
-                if (m_table[row_num].contains(col_num)) {
-                    writeCellData(writer, row_num, col_num, m_table[row_num][col_num]);
+                if (m_cellTable[row_num].contains(col_num)) {
+                    writeCellData(writer, row_num, col_num, m_cellTable[row_num][col_num]);
                 }
             }
             writer.writeEndElement(); //row
@@ -376,11 +472,10 @@ void Worksheet::writeSheetData(XmlStreamWriter &writer)
         } else {
 
         }
-
     }
 }
 
-void Worksheet::writeCellData(XmlStreamWriter &writer, int row, int col, const XlsxCellData &data)
+void Worksheet::writeCellData(XmlStreamWriter &writer, int row, int col, XlsxCellData *cell)
 {
     //This is the innermost loop so efficiency is important.
     QString cell_range = xl_rowcol_to_cell_fast(row, col);
@@ -389,28 +484,32 @@ void Worksheet::writeCellData(XmlStreamWriter &writer, int row, int col, const X
     writer.writeAttribute("r", cell_range);
 
     //Style used by the cell, row or col
-    if (data.format)
-        writer.writeAttribute("s", QString::number(data.format->xfIndex()));
-
-    if (data.dataType == XlsxCellData::String) {
-        //data.data: Index of the string in sharedStringTable
+    if (cell->format)
+        writer.writeAttribute("s", QString::number(cell->format->xfIndex()));
+    else if (m_rowsInfo.contains(row) && m_rowsInfo[row]->format)
+        writer.writeAttribute("s", QString::number(m_rowsInfo[row]->format->xfIndex()));
+    else if (m_colsInfoHelper.contains(col) && m_colsInfoHelper[col]->format)
+        writer.writeAttribute("s", QString::number(m_colsInfoHelper[col]->format->xfIndex()));
+
+    if (cell->dataType == XlsxCellData::String) {
+        //cell->data: Index of the string in sharedStringTable
         writer.writeAttribute("t", "s");
-        writer.writeTextElement("v", data.value.toString());
-    } else if (data.dataType == XlsxCellData::Number){
-        writer.writeTextElement("v", data.value.toString());
-    } else if (data.dataType == XlsxCellData::Formula) {
+        writer.writeTextElement("v", cell->value.toString());
+    } else if (cell->dataType == XlsxCellData::Number){
+        writer.writeTextElement("v", cell->value.toString());
+    } else if (cell->dataType == XlsxCellData::Formula) {
         bool ok = true;
-        data.formula.toDouble(&ok);
+        cell->formula.toDouble(&ok);
         if (!ok) //is string
             writer.writeAttribute("t", "str");
-        writer.writeTextElement("f", data.formula);
-        writer.writeTextElement("v", data.value.toString());
-    } else if (data.dataType == XlsxCellData::ArrayFormula) {
+        writer.writeTextElement("f", cell->formula);
+        writer.writeTextElement("v", cell->value.toString());
+    } else if (cell->dataType == XlsxCellData::ArrayFormula) {
 
-    } else if (data.dataType == XlsxCellData::Boolean) {
+    } else if (cell->dataType == XlsxCellData::Boolean) {
         writer.writeAttribute("t", "b");
-        writer.writeTextElement("v", data.value.toBool() ? "1" : "0");
-    } else if (data.dataType == XlsxCellData::Blank) {
+        writer.writeTextElement("v", cell->value.toBool() ? "1" : "0");
+    } else if (cell->dataType == XlsxCellData::Blank) {
         //Ok, empty here.
     }
     writer.writeEndElement(); //c
@@ -429,9 +528,9 @@ void Worksheet::calculateSpans()
     int span_max = INT32_MIN;
 
     for (int row_num = m_dim_rowmin; row_num <= m_dim_rowmax; row_num++) {
-        if (m_table.contains(row_num)) {
+        if (m_cellTable.contains(row_num)) {
             for (int col_num = m_dim_colmin; col_num <= m_dim_colmax; col_num++) {
-                if (m_table[row_num].contains(col_num)) {
+                if (m_cellTable[row_num].contains(col_num)) {
                     if (span_max == INT32_MIN) {
                         span_min = col_num;
                         span_max = col_num;
@@ -472,4 +571,50 @@ void Worksheet::calculateSpans()
     }
 }
 
+/*
+  Sets row height and format. Row height measured in point size. If format
+  equals 0 then format is ignored.
+ */
+bool Worksheet::setRow(int row, double height, Format *format, bool hidden)
+{
+    int min_col = m_dim_colmax == INT32_MIN ? 0 : m_dim_colmin;
+
+    if (checkDimensions(row, min_col))
+        return false;
+
+    if (m_rowsInfo.contains(row)) {
+        m_rowsInfo[row]->height = height;
+        m_rowsInfo[row]->format = format;
+        m_rowsInfo[row]->hidden = hidden;
+    } else {
+        m_rowsInfo[row] = new XlsxRowInfo(height, format, hidden);
+    }
+    return true;
+}
+
+/*
+  Sets column width and format for all columns from colFirst to colLast. Column
+  width measured as the number of characters of the maximum digit width of the
+  numbers 0, 1, 2, ..., 9 as rendered in the normal style's font. If format
+  equals 0 then format is ignored.
+ */
+bool Worksheet::setColumn(int colFirst, int colLast, double width, Format *format, bool hidden)
+{
+    bool ignore_row = true;
+    bool ignore_col = (format || (width && hidden)) ? false : true;
+
+    if (checkDimensions(0, colLast, ignore_row, ignore_col))
+        return false;
+    if (checkDimensions(0, colFirst, ignore_row, ignore_col))
+        return false;
+
+    XlsxColumnInfo *info = new XlsxColumnInfo(colFirst, colLast, width, format, hidden);
+    m_colsInfo.append(info);
+
+    for (int col=colFirst; col<=colLast; ++col)
+        m_colsInfoHelper[col] = info;
+
+    return true;
+}
+
 } //namespace
diff --git a/src/xlsxworksheet.h b/src/xlsxworksheet.h
index 0deee22..c43f935 100755
--- a/src/xlsxworksheet.h
+++ b/src/xlsxworksheet.h
@@ -37,27 +37,9 @@ class Workbook;
 class XmlStreamWriter;
 class Format;
 
-struct XlsxCellData
-{
-    enum CellDataType {
-        Blank,
-        String,
-        Number,
-        Formula,
-        ArrayFormula,
-        Boolean
-    };
-    XlsxCellData(const QVariant &data=QVariant(), CellDataType type=Blank, Format *format=0) :
-        value(data), dataType(type), format(format)
-    {
-
-    }
-
-    QVariant value;
-    QString formula;
-    CellDataType dataType;
-    Format *format;
-};
+struct XlsxCellData;
+struct XlsxRowInfo;
+struct XlsxColumnInfo;
 
 class Worksheet : public QObject
 {
@@ -71,13 +53,18 @@ public:
     int writeBlank(int row, int column, Format *format=0);
     int writeBool(int row, int column, bool value, Format *format=0);
 
+    bool setRow(int row, double height, Format* format=0, bool hidden=false);
+    bool setColumn(int colFirst, int colLast, double width, Format* format=0, bool hidden=false);
+
     void setRightToLeft(bool enable);
     void setZeroValuesHidden(bool enable);
 
 private:
     friend class Package;
     friend class Workbook;
-    explicit Worksheet(const QString &sheetName, int sheetIndex, Workbook *parent=0);
+    Worksheet(const QString &sheetName, int sheetIndex, Workbook *parent=0);
+    ~Worksheet();
+
     virtual bool isChartsheet() const;
     QString name() const;
     int index() const;
@@ -91,12 +78,16 @@ private:
     int checkDimensions(int row, int col, bool ignore_row=false, bool ignore_col=false);
     QString generateDimensionString();
     void writeSheetData(XmlStreamWriter &writer);
-    void writeCellData(XmlStreamWriter &writer, int row, int col, const XlsxCellData &data);
+    void writeCellData(XmlStreamWriter &writer, int row, int col, XlsxCellData *cell);
     void calculateSpans();
 
     Workbook *m_workbook;
-    QMap<int, QMap<int, XlsxCellData> > m_table;
+    QMap<int, QMap<int, XlsxCellData *> > m_cellTable;
     QMap<int, QMap<int, QString> > m_comments;
+    QMap<int, XlsxRowInfo *> m_rowsInfo;
+    QList<XlsxColumnInfo *> m_colsInfo;
+    QMap<int, XlsxColumnInfo *> m_colsInfoHelper;//Not owns the XlsxColumnInfo
+
 
     int m_xls_rowmax;
     int m_xls_colmax;
@@ -126,6 +117,4 @@ private:
 
 } //QXlsx
 
-Q_DECLARE_TYPEINFO(QXlsx::XlsxCellData, Q_MOVABLE_TYPE);
-
 #endif // XLSXWORKSHEET_H