Does any one knows the comparison from feature of 3ds, obj, ase, md2 and x-files format? Thanx for help....

As what I know, .3ds is for 3ds Max, .obj is for Maya, x file is created by Microsoft. .3ds and .x both are legacy formats, there is a tool in Microsoft DirectX sdk called conv3ds.exe which can convert .3ds format to .x format, but the skin information and animation may be lost or tweested during the converting process.