Excel Data Entry Automation Script

Job ID: 39202790

Budget: $10 – $30 USD

looking for script to handle BULK & BIG excel csv files (about 270 more) automatically
Each excel file has about 1M rows

automation include: adding headers, removing columns, creating filters, removing symbol(s) from cells under certain column & saving the edited excel file(s)

Details & demo video to be discussed

Note that the script should be able to wait for completion of handling all data on an excel file,
since there're 1M rows on each,
and then detect it's completed to move on to the next process.

Or if you have smarter ways please suggest.