Software development (Java, JavaFX, MySQL, PostgreSQL, Microsoft Office)

You need to write a program to display data from an Excel document (a lot of data). In the left part of the program, the category menu with the option (adding, deleting, renamed, as well as the option to change the categories locations, to build a convenient hierarchy for me), right of the table to extract the data of the selected category (the option to add a new line, remove the old, edit as in Excel). A window of settings to connect to a database (MySQL, PostgreSQL and others, which database we will use later). The program should be able to make multiple data imports from an Excel file. If a new category is in a Excel file, the program creates new categories, if a category in a Excel file already exists in the program, then you don’t need to create a category, you just need to attach the data to the already existing category. The button to open the official website. Access to the connection settings to the base and import - to implement using a combination of keys (which - I'll say).