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Zero7Files guides

Step-by-step explanations for every tool, with examples, tips and their real limitations. Every tool runs in your browser and never uploads your files.

Documents and spreadsheets

• Merge and split PDFsCombine several PDFs in any order, or split every page into its own file.
• PDF to eBook (EPUB)Read your text PDFs comfortably on a Kobo, Kindle or phone.
• Combine and split Excel filesStack rows from many workbooks into one master sheet, or export each tab.
• CSV and JSON ⇄ ExcelConvert exports from banks, surveys or APIs — semicolons and quotes included.

Images

• Compress and convert imagesShrink your photos and switch between PNG, JPG and WEBP.

Scientific calculator

• Online scientific calculator, step by step2D fractions, integrals, derivatives, equations, systems, regressions, complex numbers and matrices.

Data, email and other formats

• OFX bank statement to ExcelYour transactions in a spreadsheet for budgeting, without uploading them anywhere.
• XML to ExcelEach repeated element becomes a row; attributes and nested fields become columns.
• SQLite to ExcelOne sheet per table of your database, nothing to install.
• EML email to PDFSave an email as a record with its subject, sender and date.
• Create and extract ZIP filesBundle files to send them, or open a ZIP on a computer with no software.
• Markdown to HTMLTurn your .md notes into a web page ready to view or print.

Missing something?

If you'd like a guide on another task or a new tool, get in touch.