A "VS file" is often understood as a `.vs` text file, but since many also call Visual Studio’s `.vs` folder "VS," you must rely on where the file came from to know for sure; if it’s truly a `.vs` file, it’s most commonly a vertex shader source used alongside other shader stages, opening normally in text editors, and containing HLSL traits like `float4` with semantics such as `SV_Position`, or GLSL features like `uniform` that feed into `gl_Position`.

Because the `.vs` extension varies depending on software, the file might be custom text or binary, and if it looks unreadable the most reliable identification method is checking the workflow it came from; but a folder named `.vs` next to a `.sln` file is simply Visual Studio’s cache directory containing IntelliSense data, not real project code, and while it’s excluded from Git, deleting it is usually safe since Visual Studio rebuilds it—at the cost of losing local UI state like tab sets.

".vs" can mean something else because file extensions are simply labels, not enforced standards, and Windows uses them just to decide which program to open rather than enforcing unique meanings, so any developer can reuse the same extension for unrelated purposes, which is why you can’t assume every `.vs` file is a vertex shader even though that’s common in graphics, since another tool might use `.vs` for its own vector-scene data and Windows would still show it as a "VS file" or unknown unless something on your PC has claimed that extension.

A `. If you have any type of inquiries pertaining to where and the best ways to make use of VS file structure, you can contact us at the web site. vs` file can also be "something else" because context determines interpretation; in rendering projects `.vs` is often understood as a vertex shader due to its association with other shader files and build steps, yet other workflows reuse `.vs` for readable config or script files containing XML text unrelated to HLSL/GLSL, and some `.vs` files are binary, appearing garbled since they’re compiled assets or caches, so you learn the truth from where the file came from and what program handles it correctly.

If you want a fast way to figure out what your `.vs` file actually is, treat the extension as a non-definitive marker and verify it by checking the folder and nearby files, reviewing its "Opens with" info, and opening it in a text editor to see if it looks like shader code, another text format, or binary—these three checks typically answer the question quickly.