diff --git a/.~lock.test_masque.ods# b/.~lock.test_masque.ods#
new file mode 100644
index 0000000..25beaff
--- /dev/null
+++ b/.~lock.test_masque.ods#
@@ -0,0 +1 @@
+,sanchezn,pc-sanchezn,08.10.2025 08:57,file:///home/sanchezn/.config/libreoffice/4;
\ No newline at end of file
diff --git a/.~lock.test_masque.xlsx# b/.~lock.test_masque.xlsx#
deleted file mode 100644
index 58cf175..0000000
--- a/.~lock.test_masque.xlsx#
+++ /dev/null
@@ -1 +0,0 @@
-,sanchezn,pc-sanchezn,07.10.2025 21:58,file:///home/sanchezn/.config/libreoffice/4;
\ No newline at end of file
diff --git a/src/xlsxtocsv.rs b/src/xlsxtocsv.rs
index bf78c2e..d6f9a23 100644
--- a/src/xlsxtocsv.rs
+++ b/src/xlsxtocsv.rs
@@ -72,7 +72,7 @@ pub fn xlsxtocsv(args: &Arguments) -> Result<(), Error> {
 
     let mut empty_row = String::from("");
     for _ in 1..num_cols {
-        empty_row += ";"
+        empty_row.push(args.separator);
     }
 
     // TODO get every hidden columns
diff --git a/test_masque.ods b/test_masque.ods
new file mode 100644
index 0000000..5088e99
Binary files /dev/null and b/test_masque.ods differ
diff --git a/test_masque.xlsx b/test_masque.xlsx
index cb2cb9e..e0f4150 100644
Binary files a/test_masque.xlsx and b/test_masque.xlsx differ