There are multiple ways to convert a CSV file to Excel formats (XLS, XLSX). You can use Microsoft Excel, a dedicated converter freeware, or an online tool to perform the conversion. But ...

click on Add PDF or Add Folder button to import PDF files to it. Then, choose the PDF pages you want to convert. After that, select desired Excel format from XLS, XLSX, and CSV, provide output ...

and there among all the files would be a CSV file full of your tweets and the associated metadata. You could then load the CSV into Excel, convert it into a table, and save the resulting workbook.