How do I change file formats?

Indeed sir, changing file formats can often seem like a task for the more technologically inclined, but it need not be so daunting. The process usually involves using either built-in tools within your operating system or software designed for such conversions. For instance, on Windows you might use the File menu and choose Save As, then select the desired format from the dropdown list. On macOS, a similar option exists under the File menu as well. If more advanced editing is required, say, converting a PDF to an editable Word document, specialised software such as Adobe Acrobat or online converters may come in handy. If I may venture to suggest, familiarising yourself with the basic functions of your system's file manager will go a long way toward making these conversions second nature.