What is the best data structure to use to save data from an excel file that will then be used to generate a GUI where the data can be edited?

Question

I am currently creating a program that will take an excel spreadsheet and save the cell data in a 2D array. If a cell is empty then an empty string is used. I then generate a GUI using that data. My GUI needs to have input fields where the data can be extracted and used. The excel spreadsheet has a set amount of columns but can have any amount of rows as well as empty cells.

I was wondering what the best data structure to use to store the data from the excel spreadsheet is that will allow me to edit the data and add new columns/rows.

Thanks.

Answer 1

如果您愿意使用库，则可能想看看Apache POI，而不是重新发明轮子。

Answer 2

假设不考虑加密，为什么不使用简单的.csv文件？