Depends on the kind of report you need to create.
Mendix has built in Report Widgets.
If you provide a bit more information about the kinds of reports you are trying to create, you may get more specific answers.
Hope that helps,
So essentially, I want the first part of the report to look like the first image. I want to be able to select fields that I can display, select a few parameters, and then create the report. Once the report is created, I want to have a report such as the second image to be built where the fields are the column headers and there are options to save, export and clear the report. How could I replicate this in Mendix? Is there a better tool or widget for this?