There is a department with employees who fill out a spreadsheet every day in an excel file with the name of the activity and the amount of time spent on this activity:
Название деятельности | Кол-во часов Перебор книг | 5 Заполнение документации | 0.5 .........................| ... Certain fields are summarized.
Each employee fills out his file and at the end of the month / week sends by mail / grid to the head of the department.
Required: calculate, display the number of time for each activity by all employees of the department at once, who fill in each file.
What is the best way to do this through excel? Or using php.


