Today,When I look at this video,found that of the saved file format is “filename.asset”.
I ask,what is the asset file?How is to do create it?
Thanks.
Hi,
I think you have watched our video of GameDraw 
Basically Unity can take a number of formats but the .asset is a general format used by Unity in which you can define assets that are not already defined by Unity like .cubemap, .mat, .guiskin and .anim or imported formats like .png or .fbx so you can declare new assets to be stored by the assetdatabase, see the link below and if you need help please drop be a PM and I will be glad to help you out 