When working with cloud data sources you might encounter links where spaces show up as “%20” instead for example. This is called URI escaping or encoding. In Power Query there is a native function that does this kind of encoding: Uri.EscapeDataString – PowerQuery M | Microsoft Learn
However, a native function that does just the opposite is missing. Fortunately, this can be achieved with a custom function that I have found in the Power BI forum:
Click through for that function.