1. Check it's a text PDF
Try selecting a number in the PDF. If you can't, it's a scan: run OCR PDF first.
2. Convert
Open PDF to Excel and choose the file. Each page becomes its own sheet.
3. Tidy up
Check merged cells, headers and totals. Complex layouts may need a little cleanup.
Questions
Why are all my numbers in one column?
Tables without clear column spacing are hard to split. Check the sheet and adjust the columns by hand where needed.
Related: Scan paper documents with your phone · Convert a PDF to an editable Word file · Make a scanned PDF searchable