Ime Itoro Vivian

BASIC TECH SCHOOL COHORT 6 GROUP 4 TOPIC: FILE TYPES AND FILE EXTENSIONS Instructor: Mrs Adesogan Mary Funmi Presented by: Eziefula chigozirim Jessica Oluwatosin Ayanfenwa Moturayo Adegbola Koleade Adebisi Atinuke Fabolude Oluwayomi Praise Vivian Chisom Okafor Winifred Anche Helen Paul Hannatu Apang Ejiga Augustine Aipoh Esther Date of Submission: (6th March,2026). DEFINITION File Types or file formats are defined as the structure or data organization within a file that determines how applications read them. Whereas; A File Extension is a code that appears at the end of a filename and indicates the type of file it is. Examples are PDF, DOCX, JPG, MP4, etc. COMMON FILE TYPES 1. PDF (Portable Document Format): preserves the exact layout, fonts, and images of a document regardless of what device or software is used to open it. When to use it: Use this for final versions of documents that you intend to share or print (like resumes, contracts, or e-books) where you don't want the recipient to easily change the text. ‎ 2. DOCX/DOC (Microsoft Word): Standard Microsoft Word format for editing, creating, and sharing text documents created in Microsoft Word. docx is based on making the file size smaller and less prone to corruption. When to use it: Use this when you are still actively drafting or editing a document and need full word-processing features like spellcheck, track changes, and complex formatting. 3. Jpg / .jpeg (Joint Photographic Experts Group) The most common image format. It shrinks the file size by permanently removing some data that the human eye usually doesn't notice. ‎ ‎When to use it: Best for digital photographs and web images where you need a small file size that loads quickly. It is not ideal for images with text or sharp lines, as they can become blurry. ‎ ‎4. .mp4 (MPEG-4 ): A digital multimedia container format most commonly used to store video and audio. It is highly compressed but maintains high quality. ‎ ‎When to use it: This is the universal standard for video. Use it for streaming, sharing videos on social media, or playing movies on almost any modern device (phones, TVs, computers). Why Formats Matter Choosing the right format is important for three main reasons: 1. Compatibility: Not every program can open every file. If you send a .psd (Photoshop) file to someone without Photoshop, they won't be able to see your work. Using universal formats like .pdf or .jpg ensures everyone can view your files. 2. Quality vs. Size: Some formats (like .png or .tiff) keep every bit of data but result in massive files. Others (like .jpg) shrink the file size but lose some quality. The format you choose depends on whether you value storage space or professional-grade detail. 3. Functionality: Some formats allow for specific features. For example, a .gif allows for animation, while a .png allows for a transparent background. Choosing the wrong format might strip away these features. In Summary Understanding file types and extensions is essential because they act as the "language" that allows software and hardware to communicate effectively. By choosing the correct format, you ensure that your work maintains its quality, remains accessible across different devices, and functions exactly as intended for your audience. Mastering these basics prevents technical errors and ensures professional, seamless digital sharing.