Some enterprises:
-have websystems that force you to save files locally instead of letting the browser handle it, which sabotages AJAX and with that pretty much HighCharts
-think in filePaths not HTTP URLs (partly because of the previous)
-have mostly employees for which "Save As CSV" is about the most technical thing they're capable of
-have an Oracle person, who can't do JS, e-mails a lot of .xls files, or gets expensive outsiders to code custom solutions not as nice and flexible as HighCharts

My suggestions to fix these matters are:

dataviz ideas:

genericCSV2barChart
openWebFilesInsteadOfDownload
parseOracleUserSnippetsJS
filePath2URL
filePath2URLinFileExplorer

opened github repos for all
for some I've some code somewhere
will collect
for now mostly emptyness still at http://github.com/stelt
Though there are a few remarks in the descriptions or first edit or issue