Q3S File Format (.q3s)
A Q3S file is Quick3D's scene format, holding multiple meshes with their materials, textures, cameras, lights and transforms, identified in the file by the signature string "quick3Ds".
Q3S at a glance#
| Full name | Quick3D scene |
|---|---|
| File extension | .q3s |
| Category | 3D Models |
| Compression | Uncompressed |
| FileFlip support | FileFlip reads this format but does not write it |
What a .q3s file can hold#
These are the things a Q3S file either supports or does not, and they are what decides whether a conversion keeps everything or quietly drops something.
| Textures and materials | Yes |
|---|
Strengths and limitations of Q3S#
What Q3S does well
- Keeps a whole arrangement, several meshes plus cameras and point lights, in one file rather than splitting it across separate object files
- Simple enough that a handful of format-conversion libraries still parse it decades later
Where Q3S falls short
- Quick3D itself is long out of circulation, so there's no current vendor documentation to check a parser against
- No animation data, only static meshes, lights, cameras and their placement
- Effectively unsupported outside a small number of legacy conversion tools
There's little reason to create a new Q3S file today; it only comes up when an old Quick3D scene needs to be read.
Convert Q3S to glTF or OBJ as soon as the scene needs to open anywhere other than Quick3D itself.
How to open a .q3s file#
A .q3s file opens in the programs below, grouped by the platform you are on. If you would rather not install anything, FileFlip converts Q3S into a format your machine already opens, and it does it in the browser tab rather than on a server.
| Platform | Programs that open it |
|---|---|
| Web | FileFlip |
Q3S questions people ask#
What is a Q3S file?
A Q3S file is a 3D scene saved by Quick3D, an older Windows application for viewing and converting 3D models. It holds multiple meshes along with their materials, cameras, lights and transforms, identified internally by the signature "quick3Ds".
What's the difference between Q3S and Q3O?
A Q3S file is a full scene with several objects, cameras and lights, while a Q3O file is Quick3D's single-object format holding just one mesh and its materials.
What software still opens Q3S files today?
Quick3D itself is no longer in active circulation, so a Q3S file today is almost always opened through a format-conversion library that has kept support for it rather than the original application.
Converting Q3S files#
Convert Q3S to another format
FileFlip does not write .q3s files, so nothing on the site converts into this format. It works as a source only.
Every conversion runs inside your browser. The file is read from your disk, the work happens on your own machine, and nothing is uploaded. How FileFlip works names the engine behind each family and how to verify that for yourself.