---
title: "Updates an existing material library"
method: POST
path: "/materials/libraries/d/{did}/w/{wid}/e/{eid}/csv"
tags: ["Material"]
---

# Updates an existing material library

`POST /materials/libraries/d/{did}/w/{wid}/e/{eid}/csv`

Update a material in an Onshape Material Library from a csv file. Changes made replace the existing library.

## Path parameters

- `did` string, required
- `wid` string, required
- `eid` string, required

## Response `default`

default response

---

[API](https://skmtc.net/onshape/apis/onshape-rest-api.md) · [All operations](https://skmtc.net/onshape/apis/onshape-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/onshape/onshape-rest-api/revisions/aaa3e1322450/schema)