C++ or PYTHON APP WITH GUI TO UPDATE AN EXCEL FILE FROM a CSV FOLLOWING SETTINGS and CONDITIONS

Here at our university lab we need to update a No-Sql database using Excel files that are "provided" by the No-Sql engine. So..., we download an excel file from the server, but we can't modify it using formulas, macros or adds-on. We can only modify some data, and we can only do it from an starting particular row until EOF() Many settings and established conditions will be established at an external settings file, type txt. 1) One process, named "UPDATE", will... Typical file pick-up with "Select" button. Considering general settings that will tell the app "how" to match any excel row, with the CSV file, some changes are going to be made at the matching rows. Here some conditions will be evaluated prior to apply changes. Then, some general changes are going to be applied to ALL excel rows, in some specific columns. 2) Other process named "Active/Unactive" Typical file pick-up with "Select" button. Would ask for two pairs of values, corresponding to two Excel columns. A condition would be analyzed for everyone of them, and the record status would be switchable between Active and Unactive. 3) The third process will be named "Append" Typical file pick-up with "Select" button. Then considering other CSV with its own structure, would just append records to an heavily structured, but data-empty Excel file. Testing data sets will be provided. Source code must be delivered. Not limited to C++ or Python, but must be able to self-run in Windows Xp, Windows 7-32-64 and Windows 10 Could be web-based, meaning, a cloud app, but for cloud, Python will be requested. To avoid the typical bot answers to this request, please include the word "Sunrise" as the first work of your proposal & interest expression. If don't, your answer will be ignored.