diff --git a/noms.xlsx b/noms.xlsx
index ca4f225..a0333bd 100644
Binary files a/noms.xlsx and b/noms.xlsx differ
diff --git a/src/arguments.rs b/src/arguments.rs
index bfd657f..fb8c183 100644
--- a/src/arguments.rs
+++ b/src/arguments.rs
@@ -122,6 +122,12 @@ pub(crate) struct RawArguments {
     /// avoid nth first rows of xlsx file
     #[arg(short = 'k', long, default_value_t = 0)]
     pub skip_rows: u32,
+    /// avoid empty lines
+    #[arg(short, long, default_value_t = false)]
+    pub avoid_empty_rows: bool,
+    /// consider first line (after row skipped) as header line
+    #[arg(short, long, default_value_t = false)]
+    pub header: bool,
     /// change end of line character
     #[arg(short, long, default_value_t = String::from("\n"))]
     pub end_of_line: String,
@@ -160,6 +166,10 @@ pub struct Arguments {
     pub(crate) number_rows: NumberRows,
     /// Avoid nth first rows of xlsx file
     pub(crate) skip_rows: u32,
+    /// avoid empty lines
+    pub avoid_empty_rows: bool,
+    /// first line (after row skipped) is header line
+    pub header: bool,
     ///# csv output specific options
     /// Separator for output
     pub(crate) separator: char,
@@ -194,6 +204,8 @@ impl Default for Arguments {
             trim: Default::default(),
             number_rows: Default::default(),
             skip_rows: Default::default(),
+            avoid_empty_rows: false,
+            header: false,
             end_of_line: String::from("\n"),
             replace_end_of_line_by: Default::default(),
         }
@@ -231,6 +243,8 @@ impl From<RawArguments> for Arguments {
             trim: raw.trim,
             number_rows: raw.number_rows,
             skip_rows: raw.skip_rows,
+            avoid_empty_rows: raw.avoid_empty_rows,
+            header: raw.header,
             end_of_line: raw.end_of_line,
             replace_end_of_line_by: raw.replace_end_of_line_by,
         }
diff --git a/src/main.rs b/src/main.rs
index d978d34..2536763 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,6 +3,7 @@ pub use xlsxtocsv::{error::Error, xlsx::XlsxReader};
 fn main() -> Result<(), Error> {
     let lf = XlsxReader::new("noms.xlsx")
         .with_active_worksheet()
+        .with_fill_merged_cells(xlsxtocsv::arguments::FillMergedCells::Both)
         .to_lazyframe()?;
 
     let df = lf.collect()?;
diff --git a/src/xlsx.rs b/src/xlsx.rs
index 9baf3ea..f3346af 100644
--- a/src/xlsx.rs
+++ b/src/xlsx.rs
@@ -13,9 +13,11 @@ pub struct XlsxReader {
     pub(crate) book: Option<Spreadsheet>,
     pub(crate) sheet_index: Option<usize>,
     pub(crate) worksheet_dimensions: RefCell<Option<(u32, u32)>>,
+    pub(crate) current_row: u32,
 }
 
 impl XlsxReader {
+    /// Create an XlsxReader from a path or clap arguments
     pub fn new(args: impl IntoArgs) -> Self {
         let args = args.into_args();
 
@@ -24,6 +26,7 @@ impl XlsxReader {
             book: None,
             sheet_index: None,
             worksheet_dimensions: RefCell::new(None),
+            current_row: 0u32,
         }
     }
 
@@ -91,7 +94,6 @@ impl XlsxReader {
             let mut num_cols = 0;
             let mut num_rows = 0;
             let sheet = self.get_sheet().unwrap();
-
             for cell in sheet.get_cell_collection() {
                 let value = get_value(cell); //.get_formatted_value();
 
@@ -127,13 +129,23 @@ impl XlsxReader {
             let value = cell.get_formatted_value();
             let coord = cell.get_coordinate();
             let col = *coord.get_col_num() - 1;
-            res[col as usize] = value;
+            if col < num_cols.try_into().unwrap() {
+                res[col as usize] = value;
+            }
         }
 
         res
     }
 }
 
+impl Iterator for XlsxReader {
+    type Item = Result<String, Error>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        todo!()
+    }
+}
+
 pub fn list_worksheets(book: Spreadsheet) -> Result<Vec<(usize, String)>, Error> {
     let sheets = book.get_sheet_collection();
     let mut res = vec![];
diff --git a/src/xlsx_builder.rs b/src/xlsx_builder.rs
index c8f55ca..9713c50 100644
--- a/src/xlsx_builder.rs
+++ b/src/xlsx_builder.rs
@@ -104,6 +104,16 @@ impl XlsxReader {
         self
     }
 
+    pub fn with_avoid_empty_rows(mut self) -> Self {
+        self.args.avoid_empty_rows = true;
+        self
+    }
+
+    pub fn with_header(mut self) -> Self {
+        self.args.header = true;
+        self
+    }
+
     pub fn with_end_of_line(mut self, eol: String) -> Self {
         self.args.end_of_line = eol;
         self