How to save any file as a PDF

Step-by-step instructions for creating PDFs from any file type, including methods for merging, compressing and password-protecting PDF documents securely.
Techopedia

How Claude’s New File Creation Features Work in Practice

Discover how Claude now generates Word, Excel, and PowerPoint files with built-in formatting, saving teams hours on ...
GitHub

Defining Excel styles with HTML and CSS. It's a templated language, as same as HTML.

colspan Allows a single excel cell to span the width of more than one cell or column. rowspan Allows a single excel cell to span the height of more than one cell or row. Not supported by all CSS ...