# Cant open a .json file

**URL:** <https://discourse.processing.org/t/cant-open-a-json-file/4333>\
**Category:** Coding Questions\
**Created:** [October 10, 2018, 3:45pm UTC](https://discourse.processing.org/t/cant-open-a-json-file/4333 "2018-10-10T15:45:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![eilamM](https://avatars.discourse-cdn.com/v4/letter/e/df705f/32.png) [@eilamM](https://discourse.processing.org/u/eilamM)\
**Post date:** [October 10, 2018, 3:45pm UTC](https://discourse.processing.org/t/cant-open-a-json-file/4333/1 "2018-10-10T15:45:09Z")

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Hi,  
so every time I try to open a .json file via Processing, it crashes, and telling me “I don’t know how to a sketch with the “json” file extension.”.  
I have both Java and p5.js Modes installed.  
I’m kinda new to the programm and really appreciate if someone could clarify me the problem and how to solve it.

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<div class="post-metadata">

**Author:** ![Sarah](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/sarah/32/1675_2.png) [@Sarah](https://discourse.processing.org/u/Sarah)\
**Post date:** [October 11, 2018, 6:47am UTC](https://discourse.processing.org/t/cant-open-a-json-file/4333/2 "2018-10-11T06:47:08Z")

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You can’t use the Processing IDE to open .json files. If you want to open them you can use your systems text editor, or if you want to load a .json file to a Processing sketch, you can use `loadJSONObject()`:  
[https://processing.org/reference/loadJSONObject\_.html](https://processing.org/reference/loadJSONObject_.html)