Small Program/Macro to batch rename files

Need a quick program to rename files and folders in batch automatically, basically it just needs to do a search and replace. File name 0001-hello [login to view URL] >SC00001WHT-SC01-hello [login to view URL] File that I needs to be processed can be from a txt file or csv,excel etc. I got a list of before/after names, the program needs to search for before (ie. 0001) and replace it with after (SC00001WHT-SC01) File that I would give you: OLD SKU NEW SKU 0001 SC00001WHT-SC01 0002 SC00002VCC-AB01 etc