The downloaded file
Supposed the Excel Enquette file was downloaded either with Anonymized votes or Full information option, the first worksheet is named Composed and may look like this.
The row 2 only contains formulas composing information from other worksheets, especially Marks, to readable information record. Initially, rows 4 - 12 contain instructions including a brief schema how to arrange data to Excel Pivot-Table. Following the instruction in the row 4, this part will be overwritten by copies of the row 2. Than, the worksheet becomes your root data source and it is recommended to save the workbook as Excel XLSX format thereafter in order to save place and improve performance.
The header row 1 is configured with AutoFilter, so you can just begin with selecting data by any combination of attributes. The voting information is contained in last two columns, Mark for numeric / date and Text for textual votes.
Following the schema, you can create a next Pivot-Table worksheet. In Excel menu, select Pivot-Tables and Pivot-Chart, select New Worksheet and open the Layout dialogue. From the right columns, move Item to the field Page, move Mark to the field Row, move Schema/Criterion to Column. Then move Mark to Data, which changes to Count of Marks, and move Mark to Data once more, which changes to Count of Marks2. Doubleclick it and select Sum of Mark. Finish the Pivot-Table.
In the new worksheet, you can filter information desired and get the distribution, basic statistics and eventually create charts to selected items.
Note that this processing is meaningful with votes evaluating to integer. For processing textual values (Text field or Text Area), the AutoFilter function of the Composed worksheet is an appropriate tool.