Question 1

How does the PDF to Excel converter work?

Accepted Answer

It parses each PDF page's content stream, extracts text fragments along with their x/y positions, clusters them into rows by y-coordinate, then into columns by x-coordinate gaps. The resulting grid is rendered as CSV, HTML, JSON, or packaged as a minimal valid .xlsx (a ZIP of OOXML XML files). All in your browser — no server-side processing.

Question 2

Is the generated .xlsx a real Excel file?

Accepted Answer

Yes — it's a minimal OOXML package containing [Content_Types].xml, _rels/.rels, xl/workbook.xml, xl/worksheets/sheet1.xml, and xl/sharedStrings.xml, packaged as a ZIP with proper CRC-32 checksums. Excel, LibreOffice, Numbers, and Google Sheets can all open it. Because no external xlsx library is used, advanced features (formulas, charts, styling beyond headers/bold) are limited — focus is on clean tabular data.

Question 3

What extra features does this tool have compared to others?

Accepted Answer

(1) Page-range parser. (2) Three table-detection methods (auto-detect, by-position, by-text-grid). (3) Table detector that clusters text by y-coordinate for rows and x-coordinate for columns. (4) Row/column builder. (5) Header detector (first row / bold / repeated pattern). (6) Four output formats (XLSX, CSV, HTML, JSON). (7) Minimal XLSX XML generator (valid OOXML with shared strings). (8) Pure-JS ZIP file builder (CRC-32 + store mode). (9) CSV/HTML/JSON generators. (10) Copy + download (multi-format). (11) History (localStorage, last 20). (12) Shareable URL. (13) Summary stats (tables/cells/rows/columns). (14) Table quality scorer (0-100 based on grid alignment). (15) Multi-table extractor (multiple tables per page). (16) Cell type detector (number/date/text/currency). (17) Column-width auto-fit calculator. (18) Empty-cell handler.

Question 4

Why might the converted table look imperfect?

Accepted Answer

PDFs don't store table structure — text is just positioned glyphs. This tool infers rows and columns from x/y coordinates, so borders, merged cells, multi-line cell text, and rotated headers can confuse detection. For best results: use PDFs with clear column gaps, single-line cells, and consistent row spacing. Scanned PDFs (images) won't work because they have no text layer — OCR them first.

Question 5

Is my data sent anywhere?

Accepted Answer

No. All parsing, table detection, XLSX/CSV/HTML/JSON generation, and ZIP packaging happen locally in your browser. No file is ever uploaded. History is stored in your own localStorage.

PDF to Excel Converter

How to use