# how can i start this file . I have downloaded it

**URL:** <https://community.cesium.com/t/how-can-i-start-this-file-i-have-downloaded-it/4580>\
**Category:** CesiumJS\
**Created:** [September 8, 2016, 6:34am UTC](https://community.cesium.com/t/how-can-i-start-this-file-i-have-downloaded-it/4580 "2016-09-08T06:34:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Garima\_Khanna](https://avatars.discourse-cdn.com/v4/letter/g/c89c15/32.png) [@Garima\_Khanna](https://community.cesium.com/u/Garima_Khanna)\
**Post date:** [September 8, 2016, 6:34am UTC](https://community.cesium.com/t/how-can-i-start-this-file-i-have-downloaded-it/4580/1 "2016-09-08T06:34:49Z")

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how can i start this file . I have downloaded it

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**Author:** ![hannah](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/hannah/32/4509_2.png) [@hannah](https://community.cesium.com/u/hannah)\
**Post date:** [September 8, 2016, 3:07pm UTC](https://community.cesium.com/t/how-can-i-start-this-file-i-have-downloaded-it/4580/2 "2016-09-08T15:07:40Z")

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> **[Documentation | cesium.com](https://cesium.com/docs/)**
>
> Cesium is geospatial. Use Cesium ion's simple workflow to create 3D maps of your geospatial data for visualization, analysis, and sharing. For developers, use the open-source CesiumJS library to create custom 3D mapping apps.