jSpreadsheet plugin copy paste advanced (Free) :
Try :
- Try with access denied to clipboard on your navigator
- Set value on first cell, copy and scale with select more large range and paste
- Use button on toolbar or context menu
get started to use this plugin with this CDN :
<script src="https://cdn.jsdelivr.net/gh/GBonnaire/jspreadsheet-plugins-and-editors@latest/plugins/JSSV8/src/copypaste_advanced/index.js"></script>