diff --git a/bin/csv2xlsx.php b/bin/csv2xlsx.php
deleted file mode 100755
index 481049d..0000000
--- a/bin/csv2xlsx.php
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/php
-<?php
-require $_composer_autoload_path?? __DIR__.'/../vendor/autoload.php';
-
-use cli\Csv2xlsxApp;
-
-Csv2xlsxApp::run();
diff --git a/cli/Csv2xlsxApp.php b/cli/Csv2xlsxApp.php
deleted file mode 100644
index 0ce7c43..0000000
--- a/cli/Csv2xlsxApp.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-namespace cli;
-
-use nulib\app\cli\Application;
-use nulib\cv;
-use nulib\ext\tab\SsBuilder;
-use nulib\ext\tab\SsReader;
-use nulib\file;
-use nulib\os\path;
-
-class Csv2xlsxApp extends Application {
-  function main() {
-    $input = cv::not_null($this->args[0] ?? null, "input");
-    $inputname = path::filename($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);
-  }
-}
diff --git a/composer.json b/composer.json
index da8dad2..c52059a 100644
--- a/composer.json
+++ b/composer.json
@@ -79,7 +79,6 @@
 		}
 	},
 	"bin": [
-		"bin/csv2xlsx.php",
 		"nur_bin/compctl.php",
 		"nur_bin/compdep.php",
 		"nur_bin/datectl.php",