Indigo has several of its own file types for use specifically with Indigo.
| IGM | Indigo Material. Contains material information, but nothing else. |
| PIGM | Packed Indigo Material. Contains material information and anything else relevant to the material, such as textures. Can be unzipped with compression programs such as 7-Zip. This is the preferred format for distributing Indigo materials. |
| IGI | Indigo Image. Contains information saved from an Indigo render. Used for resuming renders. |
| IGS | Indigo Scene. Contains information about an Indigo scene saved on disk. |
| PIGS | Packed Indigo Scene. A self-contained archive with everything needed to render a scene, including all referenced models and textures etc. Can be unzipped with compression programs such as 7-Zip. This is the preferred format for distributing Indigo scenes. |
| IGQ | Indigo Queue format. Lets the user render multiple scenes after each other. The rendering process and halt settings of the different frames can be controlled in the Render Queue window. Used for rendering sequences and animations. |
| PIGQ | Packed Indigo Queue. A self-contained archive with everything needed to render a sequence of scenes, including all referenced scenes, models and textures etc. Can be unzipped with compression programs such as 7-Zip. This is the preferred format for distributing Indigo animations. |