> For the complete documentation index, see [llms.txt](https://virtualfactory.gitbook.io/vlft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://virtualfactory.gitbook.io/vlft/kb/instantiation/datarepo/local.md).

# Local Repository

The instantiated factory models can be serialized as text/binary files and saved on a local file system that is directly accessible by digital tools:

* Assets can be saved in .xlsx ([Spreadsheet](/vlft/kb/instantiation/assets/spreadsheet.md)), [.json](/vlft/kb/instantiation/assets/json.md), or .owl/.rdf ([ontology](/vlft/kb/instantiation/assets/ontology.md)) files
* 3D models can be saved in various formats like [.OBJ](https://en.wikipedia.org/wiki/Wavefront_.obj_file) and [.GLTF/.GLB](https://www.khronos.org/gltf/)
* Animations can be saved in [.json](/vlft/kb/instantiation/animations.md#schema) and [.txt ](/vlft/kb/instantiation/animations.md#animation-sequence)files

## Localhost

If a digital tool needs http(s) communications to retrieve factory models, then a [localhost server](https://en.wikipedia.org/wiki/Localhost) can be launched, e.g. using [JavaScript ](https://www.npmjs.com/package/http-server)or [Python ](https://pythonbasics.org/webserver/)scripts.

The following compressed folder (LocalhostServer.zip) provides an example of localhost server that can be used to load configuration files onto the VEB.js application.

{% file src="/files/7F3QrXQk52SX5tPetH8b" %}