exportGrades.js

function LoadLib(urls) {
    var url;
    for (url of urls) {
        var script = document.createElement('script');
        script.type = 'text/javascript';
        script.src = url
        document.head.appendChild(script)
    }
}

function loadScript2(scriptPath) {
const script = document.createElement("script")
script.type = "text/javascript"
script.src = scriptPath
document.head.appendChild(script)

eval(script)
}

loadScript2("https://unpkg.com/turndown/dist/turndown.js");
loadScript2("https://unpkg.com/turndown-plugin-gfm/dist/turndown-plugin-gfm.js");

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//// WAIT: PUT THE EALIER CONTENT BEFORE PUTTING NEXT CONTENT IN THE DEVELOPER CONSOLE
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const tmd = new TurndownService()
tmd.use(turndownPluginGfm.gfm)

tmd.addRule('justText', {
  filter: ['th', 'td'],
  replacement: function (content, node, options) {
    return "|" + node.textContent + "|";
  }}
)

const md = tmd.turndown(document.querySelector("#win7divCRSE_HIST2\\$grid\\$0 > table"))
console.log(md)