diff --git a/.idea/php.xml b/.idea/php.xml
index 557c1db..6a1b2d2 100644
--- a/.idea/php.xml
+++ b/.idea/php.xml
@@ -12,7 +12,6 @@
   </component>
   <component name="PhpIncludePathManager">
     <include_path>
-      <path value="$PROJECT_DIR$/vendor/nulib/php" />
       <path value="$PROJECT_DIR$/vendor/sebastian/code-unit-reverse-lookup" />
       <path value="$PROJECT_DIR$/vendor/nulib/phpss" />
       <path value="$PROJECT_DIR$/vendor/sebastian/code-unit" />
@@ -59,6 +58,9 @@
       <path value="$PROJECT_DIR$/vendor/nulib/tests" />
       <path value="$PROJECT_DIR$/vendor/psr/http-factory" />
       <path value="$PROJECT_DIR$/vendor/composer" />
+      <path value="$PROJECT_DIR$/vendor/nulib/spout" />
+      <path value="$PROJECT_DIR$/vendor/nulib/php" />
+      <path value="$PROJECT_DIR$/vendor/nulib/spout" />
     </include_path>
   </component>
   <component name="PhpProjectSharedConfiguration" php_language_level="7.4" />
diff --git a/bin/csv2xlsx.php b/bin/csv2xlsx.php
new file mode 100755
index 0000000..0f0bb32
--- /dev/null
+++ b/bin/csv2xlsx.php
@@ -0,0 +1,7 @@
+#!/usr/bin/php
+<?php
+require $_composer_autoload_path?? __DIR__.'/../vendor/autoload.php';
+
+use nulib\tools\Csv2xlsxApp;
+
+Csv2xlsxApp::run();
diff --git a/composer.json b/composer.json
index 26d537f..80d8440 100644
--- a/composer.json
+++ b/composer.json
@@ -3,6 +3,18 @@
 	"type": "library",
 	"description": "espace de maturation pour les librairies",
 	"repositories": [
+		{
+			"type": "path",
+			"url": "../nulib"
+		},
+		{
+			"type": "path",
+			"url": "../nulib-spout"
+		},
+		{
+			"type": "path",
+			"url": "../nulib-phpss"
+		},
 		{
 			"type": "composer",
 			"url": "https://repos.univ-reunion.fr/composer"
diff --git a/composer.lock b/composer.lock
index 97ddb42..dbda9a4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "ff7940a16992c5de7cd4078864ed2e95",
+    "content-hash": "f226f4de27aa551752a2406afb1e90d7",
     "packages": [],
     "packages-dev": [
         {
@@ -507,10 +507,10 @@
         {
             "name": "nulib/php",
             "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://git.univ-reunion.fr/sda-php/nulib.git",
-                "reference": "3958b8f11d16d7a4c17feb415b9158425608112a"
+            "dist": {
+                "type": "path",
+                "url": "../nulib",
+                "reference": "876873d8fc537901bf8a0f4f1d679f93d0fbc0c9"
             },
             "require": {
                 "ext-json": "*",
@@ -547,14 +547,16 @@
                 }
             ],
             "description": "fonctions et classes essentielles",
-            "time": "2024-11-29T04:40:10+00:00"
+            "transport-options": {
+                "relative": true
+            }
         },
         {
             "name": "nulib/phpss",
             "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://git.univ-reunion.fr/sda-php/nulib-phpss.git",
+            "dist": {
+                "type": "path",
+                "url": "../nulib-phpss",
                 "reference": "df05afda07f5973e55db4568fac5a9659ab38e76"
             },
             "require": {
@@ -589,15 +591,17 @@
                 }
             ],
             "description": "wrapper pour phpoffice/phpspreadsheet",
-            "time": "2024-11-28T16:47:55+00:00"
+            "transport-options": {
+                "relative": true
+            }
         },
         {
             "name": "nulib/spout",
             "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://git.univ-reunion.fr/sda-php/nulib-spout.git",
-                "reference": "d416e6799b9716d254e0cb7b31724e9e2f75d47d"
+            "dist": {
+                "type": "path",
+                "url": "../nulib-spout",
+                "reference": "f9fd6b838eb95e0ab9274344174bbd6523464aa0"
             },
             "require": {
                 "ext-dom": "*",
@@ -643,7 +647,9 @@
                 }
             ],
             "description": "wrapper pour openspout/openspout",
-            "time": "2024-11-28T17:36:37+00:00"
+            "transport-options": {
+                "relative": true
+            }
         },
         {
             "name": "nulib/tests",
diff --git a/src_glue/tools/Csv2xlsxApp.php b/src_glue/tools/Csv2xlsxApp.php
new file mode 100644
index 0000000..7ac9a59
--- /dev/null
+++ b/src_glue/tools/Csv2xlsxApp.php
@@ -0,0 +1,25 @@
+<?php
+namespace nulib\tools;
+
+use nulib\app\cli\Application;
+use nulib\ext\tab\SsBuilder;
+use nulib\ext\tab\SsReader;
+use nulib\file;
+use nulib\os\path;
+use nulib\ValueException;
+
+class Csv2xlsxApp extends Application {
+  private $args;
+
+  function main() {
+    $input = ValueException::check_null($this->args[0] ?? null);
+    $inputname = path::filename($input);
+    $output = path::ensure_ext($inputname, ".xlsx", ".csv");
+
+    $reader = SsReader::with($input);
+    $builder = SsBuilder::with($output);
+    $builder->writeAll($reader);
+    $builder->build();
+    $builder->copyTo(file::writer($output), true);
+  }
+}