Export YouTube Playlist to XML

A playlist to XML exporter saves a YouTube playlist as a well-formed XML document, for systems and tools that expect XML rather than JSON or CSV, such as older import routines, XSLT transforms, Excel's XML import or enterprise content systems.

The structure is fixed and predictable: a playlist element with the playlist's details, then a videos element holding one video element per video, with a child element for each column you pick. Lists like tags become nested item elements, missing values are empty elements, and special characters are escaped, so the file always parses and every video has the same shape.

The root <playlist> element holds the playlist's id, title, channel, url, videoCount and exportedAt, followed by a <videos> element with one <video> per video in playlist order. Each picked column becomes a child element named after it, such as <videoId> or <durationText>.

Lists like tags become nested <item> elements, and missing values are empty elements, so every <video> has the same shape. Special characters are escaped and characters XML 1.0 can't hold are removed, so the file always parses.