Show all rows:

Choose this option if you want to see all the rows in one page. (For larger reports, this is not recommended as it takes longer to load all the data on the page. In some cases it may not be possible to open the report if there is too much data.)

Show Paging: This is the default setting and gives you the paging controls right above your table.
Rows per Page: The default setting is 20 rows per page, but you can enter any whole number you wish to view your report better.