I am using animate cc. I just made a video of 1min and when i tried to export it the video size came out to be 6gb.. How can i make it small in size?
There are different settings when exporting video. It sounds like you're on an uncopressed one, and that is sometimes the best choice. If for example you are going to take that into Premiere or After Effects, and the video has an alpha channel, your final composition will be the best quality.
If instead you're making an animation to go straight to YouTube, or some other sharing site, there is an option in the export for H.264. Choose that one, and you will get an MP4 that is more like 60 MB.
Export using Adobe Media Encoder, choosing H264 as the Format and Adaptive High Bitrate as the preset.
Exporting HD videos with Adobe Media Encoder