Practical guides on getting data out of files — PDFs, images, archives and Windows installers — from the people who build the free tools.
Google Docs doesn’t offer a clean “save image” for pictures in a document — right-clicking gives limited options and often a downscaled copy. The reliable way to get every image at full quality is…
Read the guide →A .docx file is a ZIP archive of XML parts. The actual text lives in word/document.xml, stored as a tree of paragraphs and “runs” of characters; images sit in word/media/, and formatting is kept…
Read the guide →Word, Excel and PowerPoint files store hidden metadata in two XML parts inside the file — docProps/core.xml and docProps/app.xml — including the author, the company, the name of everyone who last saved it, the…
Read the guide →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 →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 →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…
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