SheetJS js-xlsx VS PDFKit

ExcelJS and XLSX (SheetJS) are great libraries to work with XLSX files. The former I've found a bit easier to work with but less efficient in general.

Sure. I manipulate excel files programatically in the browser all the time. I don't really understand your exact workflow, but I use Javascript with xlsx and React.

Looking at the xlsx documentation, to parse files in the browser, rather than readFile, you use read, which is designed to parse binary data directly, rather than read from disk. There are a bunch of different formats if you go to the XLSX NPM page and scroll down to "Acquiring and Extracting Data". Importantly, it seems the data must already be serialized, so a Blob won't work, but we can work with that.

Last year, Bing and Edge erroneously flagged our website https://sheetjs.com/ as "dangerous": https://i.imgur.com/BvA3zrk.png

At the time, there was no "Safety Report" to indicate why Bing thought it was dangerous. The report page linked to https://www.bing.com/toolbox/bing-site-safety?url=https%3a%2... and it said "That web page doesn't exist"

To fix it, we had to register with "Bing Webmaster Tools" (https://www.bing.com/webmasters/about) and raise a support ticket.

Within a few days, the issue "resolved itself". It's possible that raising a ticket forced some automatic refresh of the indexed data for the domain.

xlsx.

SheetJS | https://sheetjs.com/ | Software Developer | Full time, Remote (US) | $165K - $240K

We're a bootstrapped company building open source solutions for spreadsheets and structured data. With over 1.5M unique monthly visitors, companies across the business world turn to us for challenging data processing problems. Over the last 10 years, we have pushed the boundaries of JavaScript and the web.

In this role, you will master new and established technologies while working on high-impact projects used by millions of people across the world. Balancing research and engineering, you will design and implement creative solutions that draw from your academic and professional experience.

https://sheetjs.com/careers/ more details

For more, you can visit xlsx documentation Link.

There are libraries like https://github.com/SheetJS/sheetjs to parse excel and https://www.chartjs.org/ for all kinds of charts/graphs. Not really much HTML involved here.. the markup gets generated by the chart library.

PDFkit is one of the oldest and most well-established PDF libraries in the JavaScript ecosystem; it is still well-maintained, and regularly updated. This library is a popular option for creating and manipulating PDF documents in a server-side environment, typically using Node.js. It allows you to programmatically generate PDF files by defining each page's content, layout, and formatting.

pdfkit is a JavaScript PDF lib that allows web developers to create PDF documents programmatically. It provides a simple and intuitive API for generating basic PDFs.

Resource could be of use: pdfkit, github link.

Build a PDF generator using Kintone's REST API and a PDF library like PDFKit or PDFMake

https://pdfkit.org/ is pretty powerful, surprised to see no one has mentioned this so far.

If this is a concern for you, I suggest you look at projects like pdfkit, they allow you to compose the content of the pdf directly, without using another format (html) has an intermediate layer.

I use pdfkit at work

Then write a script to export the drag drop. Maybe use a browser function to save the page as a PDF. Or a NPM library using something like https://www.npmjs.com/package/pdfkit

Maybe pdfkit