SheetJS `xlsx` migration

Starting with version 0.18.6, NodeJS releases are distributed on https://cdn.sheetjs.com. It is extremely easy to migrate: ## This installs a module named "xlsx" using the NodeJS Package on the CDN $ pnpm install --save https://cdn.sheetjs.com/xlsx-latest/xlsx-.tgz $ npm install --save https://cdn.sheetjs.com/xlsx-latest/xlsx-.tgz $ yarn add https://cdn.sheetjs.com/xlsx-latest/xlsx-.tgz The main README can be found at https://docs.sheetjs.com. More detailed installation instructions are listed in https://cdn.sheetjs.com. Report issues to https://git.sheetjs.com/sheetjs/sheetjs/issues. The source code is available at https://git.sheetjs.com/sheetjs/sheetjs.