A PDF table is data trapped in a picture of a table
A table inside a PDF looks like a table, but it isn't one in any structural sense — it's just text positioned on a page to line up visually into rows and columns. You can't sort it, filter it, sum a column, or chart it without first getting the actual values into a real spreadsheet. Retyping a table by hand is the fallback most people reach for, and it's exactly the kind of tedious, error-prone task a conversion tool exists to replace.
How rows and columns get reconstructed from plain text
There's no explicit "this is a table" marker inside a PDF's underlying data — a conversion tool has to infer structure from position. Text is grouped into rows based on shared vertical position on the page, then split into separate cells wherever the horizontal gap between two pieces of text is noticeably wider than the normal spacing within that row. A consistent, evenly-spaced table gives this heuristic a clean, reliable signal to work with.
The output itself is a genuine .xlsx file — a real Excel Open XML spreadsheet built from scratch, not a CSV renamed to look like one — so it opens directly in Excel, Google Sheets, or LibreOffice Calc with proper spreadsheet structure already in place, ready to sort or calculate on immediately.
The habit that makes this reliable: clean source tables
If you have any control over how the original PDF's table was generated, wider and more consistent spacing between columns pays off directly here — an evenly-spaced table with a clear gap between each column converts with near-perfect accuracy. Tables with merged cells, wrapped multi-line entries, or inconsistent spacing are still readable by eye but genuinely harder for any position-based heuristic to split correctly, since the underlying signal (consistent gaps) simply isn't there.
What doesn't come along for the ride
Only the text values themselves are written to cells — there are no formulas, no cell colors, no conditional formatting, and no charts, because none of that information exists in the source PDF to begin with; a PDF only ever contains the final rendered values and positions, not a spreadsheet's underlying formulas or styling. If multiple tables sit on different pages, they'll all land on one combined sheet rather than staying separated — for genuinely separate tables, extract the relevant pages first and convert each set individually.