TinyMCE Table

HTML

<script src="//tinymce.cachefly.net/4.0/tinymce.min.js"></script>
<form method="post">
    <textarea name="content">
        
        <table>
            <tbody>
                <tr>
                    <td>ABC</td>
                    <td>DEF</td>
                    <td>GHI</td>
                </tr>
                <tr>
                    <td>ABC</td>
                    <td>DEF</td>
                    <td>GHI</td>
                </tr>
                <tr>
                    <td>ABC</td>
                    <td>DEF</td>
                    <td>GHI</td>
                </tr>
            </tbody>
        </table>
        
    </textarea>
</form>

JavaScript

tinymce.init({
    selector: "textarea",
      resize: false,
    language: 'ru',
    height: 500,
    inline: true,
    menubar: false,
    theme: 'modern',
    plugins: 'table advlist lists textcolor  textpattern',
     object_resizing: true,
    table_default_attributes: {
      'border': '1'
    },
    table_default_styles: {
      'border-collapsed': 'collapse',
      'width': '100%',
      'height': '100%'
    },
    table_appearance_options: false,
    table_responsive_width: true,
    table_grid: false,
    table_toolbar: false,
    table_row_limit: 50,
    table_col_limit: 10,
});