Practical guides on getting data out of files — PDFs, images, archives and Windows installers — from the people who build the free tools.
A file extension is the suffix in a filename (.pdf, .jpg) — a human-facing label that can be changed or wrong. A MIME type is the media type a program declares and acts on…
Read the guide →OCR is highly accurate — often above 98% — on clean, high-resolution images of printed text in a supported language, but accuracy falls sharply with low resolution, poor contrast, skew, unusual fonts, or handwriting.…
Read the guide →In a log file, an IPv4 address looks like 203.0.113.45 — four numbers separated by dots — while an IPv6 address looks like 2001:db8::1 — groups of hex separated by colons, often shortened with…
Read the guide →CSV is a plain-text file that stores one table as comma-separated rows; XLSX is Excel’s compressed, multi-sheet format that also stores formatting, formulas, multiple tabs and data types. Use CSV when you need a…
Read the guide →A PDF’s text layer is the real, selectable text stored behind the page image — and it’s what makes a PDF both extractable and accessible. The same layer that lets you copy or extract…
Read the guide →To extract data from Excel, choose the method that matches your goal: copy-paste for a few cells, the Excel data extractor for specific columns without uploading, File → Save As CSV to feed another…
Read the guide →To extract images from a PDF, open it in a tool that reads the PDF’s embedded image objects and saves each one as a separate file — keeping the original resolution instead of a…
Read the guide →Extracting email addresses from text means identifying email-like strings inside a block of text, collecting the matching addresses, removing duplicates, and separating useful results from surrounding content. If you already have the text, you…
Read the guide →To turn a PDF into a CSV, work in five steps: confirm the PDF has real (not scanned) text, extract the table to CSV, clean up merged or wrapped rows, keep only the columns…
Read the guide →PDF table extraction isn’t always accurate because a PDF has no real table underneath — no rows, no columns, no cells. It only has text placed at x/y coordinates, and an extractor has to…
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