Creating an editable table which can be updated
For your requirement Slickgrid is the best option for you and for that you need to use views module.


At the front end, users can show/hide, resize, reorder columns &amp;
resize the height of the grid. These settings will be stored per user
and used next time the grid is shown. Saving the view (via the usual
views UI) will reset these settings.

For every field defined in the view, you can set its column width, whether it's sortable, and formatters (how the cell data is displayed), an editor, a validator and filters (for filtering the column data).
This modules comes with the following plugins ready to use:

Editors:

Inline cell editor - for excel-like editing of text &amp; numeric data.
Popup field form - the field form pops up in an overlay. All field types can be edited.



Features of the grid:


Grouping field - group fields with a common value together
Collapsible taxonomy fields (tree structures)
Tabs - organise columns into tabs
Resize, reorder &amp; hide columns
Delete entities via the grid
Force fit columns (to fill the available column space)
Undo (undo previous changes - uses node revisions)
Set viewport height
Set row height
Add entities via the grid*
Clone entities*
Export data (via the views data export module)*
Multi edit/delete/clone/export (checkboxes will be displayed in the rows - select as many rows as you want to perform action against)***



or as  Pontus Nilsson said use this Editable Views module.