Click the Delete cached files button. Confirm the deletion in the window that appears by clicking the Delete Cached Files button. With that, the cached Excel files are wiped away easy.

If you can't delete a worksheet in your Excel workbook or the Delete Sheet option is greyed out in Excel, follow these fixes.

To clear all the filters from the worksheet, click the "Clear" button in the Sort & Filter group on the Data tab. The rows will restore on the worksheet.