The CSV export function on the LiveSky website appears to use a MIME type of text/plain, which result in the data being displayed as plain text in Safari on an iPad, rather than actually being downloaded. This makes it very difficult to share the CSV data with other apps like Excel via the share sheet. RFC4180 recommends that CSV be typed as text/CSV.
It also appears all of the text of the download gets encoded in the URL -weird. I can send an example URL if it will help.