Hi Yue Li,

I have attached you a youtube video of a short tutorial: 

https://www.youtube.com/watch?v=tQtbBsYWG0k 

Thank you Abeyou. I worked it out.

http://blog.sciencenet.cn/blog-255662-679159.html

Hi Mao Kang-shan, Thank you for your help.

You can use QGIS, an open source software for this purpose

The point sampling plug in will do the function

For more details go to Qgis totorial

Hi,

Yue Li. Now I have the same problem with you, can you tell me how to extract data (bioclimatic variables informations and environment data) from geotiff files downloaded from the WorldClim Version 2？ Thanks in advance! Yue Li

You can use R codes too.