A similar question has been registered in the forum but there doesn't appear to be a direct way to grab ALL records of ALL pages in one go. You might need to explore that. Also it is seen in your screenshot that there are about 16 lac records on the web table. So I do not know how much is the limit of a collection size if you ever succeed in getting all rows at once.
Try other possibilities like, as an example, if you are able to get the database of this application then get these records directly from the tables with queries. OR see how many maximum records can be pulled using the Rows dropdown at the bottom left of the page and then grab each table by navigating to each page if there are not many iterations.
Another option is to see if you have an Export option on your webpage where you can export the same data to an Excel file and get the data from there.