Javascript: Argument 1 of File constructor can't be converted to a sequence

I'm trying to change the filename of a File object via javascript:

<html>
<head><title>test</title></head>
<body>
    <input type="file" id="file" onchange="__func(this)">
</body>

<script>
    function __func(target)
    {
        let file = target.files[0];
            file = new File(
                file.slice(0, file.size),
                file.name,
                {type: 'text/csv'}
            );

        console.log(file);
    }
</script>
</html>

Even if slice returns a Blob object, and File constructor does accept a Blob object as first parameter, I receive the following error:

Argument 1 of File constructor can't be converted to a sequence.

How can I solve it?

<html> <head><title>test</title></head> <body> <input type="file" id="file" onchange="__func(this)"> </body> <script> function __func(target) { let file = target.files[0]; file = new File([file], 'youRenamedIt.csv',{type:file.type}); console.log(file); } </script> </html>

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