Reading pins poligons information from files .dbf, .prj, .shp, .kmz, .kml. Build animation.

Hi. I have developed functional for viewing data on the cesium map that uses json file, and common cesium functions for drawing poligones, points. It works well.
We have dropdowns and when we check some of its items, we change start, stop time in the timeline, when time is going we can see poligones or points on the map
Now, we want to do the same actions with downloaded files in cesium. Can we show animation only from these documents with some their formats (.dbf, .prj, .shp, .kmz)?
Do we need to create some special functional to implement animation from files? Do you have some suggestions how to resolve this task?