Extract data from Excel files

[KirilMT]

Category: Database and Data Management

Sub-tasks:

• When adding a new task from Excel, ensure the ability to define required technologies/skills before assignment to avoid tasks appearing as "has no required technology defined."
• Add an option to import task names from an Excel file, compare with the current database, show differences, and allow actions like add (if new), edit, or delete (if not in the new list but exists in the database).
• Integrate "Planning Notes" column data from Excel into the dashboard table by combining it with another relevant column (e.g., lines) into a single column.
• Update the total task list by extracting data from an external system as an Excel file, comparing it with database data, and adding new tasks or removing deleted ones (including updating assignments and reordering priorities).