The Data Export page is where you can export all of your assessment data into Excel format. Each of your forms will be listed on the page, with the option of exporting all sections or just a specific section of the form. If you have a lot of data, it will take a few minutes to export, so is quicker if you select a specific section.
The exported Excel file will contain a column for each field on the form, and a row for each report. Each different section will be contained within a separate worksheet. Data from different sections can be linked using the ID and REPORT ID columns.