Overview
Flow enables you to build many types of reports, such as tabular, grouped, pivot tables, tables, and data summaries. Here is the first in a series of posts focusing upon building reports in Flow. You can learn more about these different types of reports in the Flow online help. A tabular report is the most basic type of report you can build in Flow, it is organized in a multicolumn, multirow format, with each column corresponding to a column in a dataset.
There are two basic methods you can employ to create tabular reports in Flow. The first is to add a Tabular Report action to a new or existing workflow. The second way is to open a dataset within the Flow portal then click on the 
Create Report button in the toolbar located at the top of the dataset view. This post will cover the first method.