First of all, thanks for your help 🙂
I look for a plugin that allows registered users upload a CSV file, then the plugin will compare the data from the CSV with some data stored on Database and make a response to the user. I do not need to save the csv file to the database, only work with the data and print a response for the user.
Maybe exists any plugin like this or similar that I can edit?
Its posible do this task?
Read more here: Upload CSV file to WordPress and work with data