Application for financial statements of the company

Good day,

I need to make an application that combines several reports with financial data of a small company into a single entity and returns the data in the form of a table broken down into different categories. The Excel table I already have, I know the need now is for an application.

- downloading data from Google Drive files

- aggregating the appropriate costs to the appropriate place in the table

- assigning categories to costs and revenues

- possibility to divide one cost into more categories (e.g. 1 fv contains 2 items from different categories)

- possibility of manual editing of cost values by the user

- possibility of manual addition of parts of costs

- year-to-year comparison of values in the table

- comparison of values to the budget (set on the basis of the previous year, with the possibility of manual adjustment)

- mechanism for checking whether all costs are in the statement