When downloading data from the web, it’s often best to grab the data from APIs that are designed for machine-to-machine communication than from the site that’s actually visible on the screen. Not only is the download usually faster, but you also often get more additional parameters that can be very useful. In this article I’m going to show you how to retrieve the relevant URLs for downloading files from webpages (without resorting to external tools like Fiddler) and how to tweak them to your needs.
Retrieving the URL to download files from webpages
Say I want to download historical stock prices from this webpage:
When you join a table to another table in Power Query, the UI gives you the option to either expand the columns (default) or aggregate the contents of the joint tables. That’s useful if multiple rows are returned for the rows of the table that has been joined to (left table):
If you’re working with large data or complex queries that take a long time refresh, cancelling one of those refreshes can even take longer time, especially, if the query has run for quite some time already.
Luckily, there is an easy trick to cancel refresh without loosing the work you’ve done already:
The function below has just one parameter where you either fill in a full filename (incl. path) of an Excel file, or a folder path where multiple files reside. The function will automatically detect the right modus and spit out the M-code. Read more