It would be great to have an excel type app or tables function in the discussions tab or a standalone tab
Do you mean adding something like table view for tasks in addition to List/Kanban and Gantt?
M Wu commented
Or even an option to create a simple table within a task description so everything is native to freedcamp and there doesn't need to be an attachment or link to another document.
Don't you want to try our Google Drive integration - create a spreadsheet on Google Drive and attach it as a file in Freedcamp?