Update Excel tool with VBA code

I'm looking for a freelancer to modify an existing Excel tool I currently have by writing macros with VBA code. I need someone who is experienced with coding and macros, who is able to update the Excel file accurately to meet my specific needs. The code should be able to modify the existing layout, data entry, and macros. If you have previous experience working with Excel files and coding in VBA, please get in touch so we can discuss the project further.
1. automate with button to add new lines into tables
2. calculate the total automatically