| Extension | DWG |
| Full Name | Drawing |
| Type | CAD |
| Mime Type | application/octet-stream |
| Format | Binary |
A DWG file (also known as a Drawing file) is one of the older Computer Aided Design (CAD) formats and is primarily associated with Autodesk's AutoCAD application. The format started out as a format for storing 2D CAD drawings but has evolved to store other CAD-related data, including full 3D CAD models.
The format stores the core CAD data, such as points, lines, elevations, and other 2D and, in more recent versions, 3D modeling data, along with other important metadata related to the drawing. The DWG format is proprietary and is intended for use with the AutoCAD application only.
Although designed for the AutoCAD application, there are other 3D CAD and modeling applications that can open DWG files. As the format is proprietary and has been updated many times over the years, opening a DWG file with any application other than AutoCAD will be met with varying degrees of success.
| Extension | GIF |
| Full Name | Graphics Interchange Format |
| Type | Image |
| Mime Type | image/gif |
| Format | Binary |
| Opens With | Paint.Net |
GIF files have been around since the dawn of the internet and are a popular choice of format for storing images and animations. Images stored within a GIF file can be stored at low bits per pixel to reduce the size of the GIF file, leading to improved download speeds. Reducing the number of bits per pixel, if done correctly, can lead to no noticeable difference in image quality.
Along with static images, GIF files are also capable of storing short video or animation sequences. This capability has proved very popular, with animated GIFs being created and used on websites and social media. GIF files are also a popular format for storing and transmitting internet memes.
With newer and more capable formats such as PNG and WEBP taking over as the default standard for images and animations on the web, the GIF format is slowly declining in popularity. Support for GIF files within image editing software is still strong and will likely continue.
