File formats define how data is stored, organized, and interpreted by software. The file extension (e.g., .docx, .jpg) tells the computer which application can open it and how to display it. 1. Document Formats (Text & Data)
DOCX: The default format for Microsoft Word, used for text-heavy content and general documents.
PDF (Portable Document Format): Ideal for sharing, as it maintains formatting across devices, often used for official reports and eBooks.
TXT: Plain text files with no formatting, used for system logs and basic programming.
XLSX: Microsoft Excel format used for spreadsheets, data analysis, and calculations. PPTX: Microsoft PowerPoint format for presentations.
CSV: Stores structured data, commonly used for importing/exporting data between databases and spreadsheets. This video explains the most common document formats: Every File Format Explained In 10 Minutes The Verified Explainer YouTube · Jan 24, 2026 2. Image Formats (Raster & Vector)
JPEG/JPG: Lossy compression format, ideal for photographs and web storage to keep file sizes low.
PNG: Lossless compression, supports transparent backgrounds, and ideal for logos and graphics.
SVG: A vector image format that scales to any size without losing quality, used for website icons and graphics.
GIF: Supports animation and up to 256 colors, widely used for memes.
WEBP: A newer Google format for the web that combines the compression of JPEG with the transparency of PNG. TIFF/TIF: High-quality format used for printing. This video explains the most common image formats: Every File Format Explained in 16 Minutes Byte Sized Explainer YouTube · Jul 1, 2025 3. Audio & Video Formats
MP3: Common audio format for sharing and streaming, with high compression.
WAV: High-quality, uncompressed audio format, ideal for editing.
M4A: Compressed audio format with better quality than MP3, often used for music storage. FLAC: Top-quality lossless sound, popular with audiophiles. 4. Compressed & Executable Formats
ZIP: A compressed file format used to reduce the size of files and combine multiple files into one, using WinZip or native OS tools.
EXE: An executable file used to install or run applications on Windows.
If you have a specific file type, I can tell you more about its use cases, pros and cons, and what software to use for it. Common file name extensions in Windows – Microsoft Support