Automatic file processing program xls or csv

Employer
[no-member:pro]Yury[/no-member:pro]Yury
Project parameters
Type of cooperationOne-time project
SectionSoftware development
Prepaymentprepayment is possible
Payment methodsBank transfer, Electronic money
Acceptance of requestsclosed
Project description
I am being sent excel prices by email. And I need to combine a new file with the old, delete with comparison, change the columns, change the values in the crowds (the price should be increased). The result is saved in txt unicode (which is unloaded from excel) and sent by ftp to a specific folder. Detailed in TZ