Hi @maasool - It appears that you are using Excel Power Query instead of Power BI Power Query. Unfortunately, there is difference in the capability of the Web.Contents function. Power BI is more capable at identifying Tables om web pages. As I try to prepare screenshots to highlight the difference, I am finding the Power BI version much faster than Excel. The reason is that Power BI has an additional function called Web.BrowserContents. This feature is only avaiable in Power BI Desktop - not Excel or Power BI Dataflows.
After pasting the URL into the Power BI Web wziard, you are prompted with the following panel.
This is the Excel version: