Practical guides on getting data out of files — PDFs, images, archives and Windows installers — from the people who build the free tools.
A Windows program’s icon is stored inside the .exe itself, in the file’s resource section, as one or more RT_ICON images tied together by an RT_GROUP_ICON directory. The icon you see in Explorer is…
Read the guide →An .xlsx file is not one binary blob — it is a ZIP archive containing a set of XML files. Rename a copy from .xlsx to .zip, open it, and you will see folders…
Read the guide →To convert Excel to CSV without losing data, save one sheet at a time as “CSV UTF-8”, and watch three things a CSV cannot keep: leading zeros, very long numbers, and date formatting. A…
Read the guide →A searchable PDF contains a real text layer you can select, copy and search; a scanned PDF is just an image of a page with no text underneath. The quickest way to tell them…
Read the guide →Data extraction is the process of pulling specific pieces of information — text, numbers, tables, images, or metadata — out of a file or data source and turning them into a clean, structured output…
Read the guide →An .eml file is one email message stored as plain text, written by almost every mail program — Apple Mail, Thunderbird, Gmail exports and Windows Mail. A .msg file is one message stored in…
Read the guide →Most online file converters are safe for everyday documents, but the answer depends on how the service processes, stores, and deletes uploaded files. Some converters upload files to remote servers where they are temporarily…
Read the guide →Every tool runs in your browser and never uploads your files. Browse the full tool directory →
