How to export data from different types of supports?

Menu [Data exchange][Export quantity][Export spatial quantity and formula starting from different types of supports]

Then, you have to select the type of support you want to use for the export (Multipoint support, Volume region, Face region, 2D grid or 3D grid) and to set the formula or the quantity in the formula editor. The exported data is stored in *.DEX file that you can open import in Excel for instance.