ZenCart. How To Move Your Website From One Domain To Another

installed the new ZenCart in my new server but when Imported the old files saw that:
old ZenCart files names are something like this: ZEN_address_book
new ZenCart names are: ZC_address_book
now I have duplicated files, only the old ones have the correct information, dont know how to fix that, can you help me?

thank you!

You can also check out text version of this video tutorial, it's in the video description.

Thanks for comprehensive tutorial. Great

would be super if it was not so quick and with no written (or spoken ) instructions. Thanks for your time tho