For export, MetaAttributes that cannot be modified by the user appear in a grayed column in the Excel page.

It is possible to export properties that cannot be modified, such as calculated attributes (for example "Name" MetaAttributes that contain the object owner), but it is not possible to import these. The wizard indicates that you do not have permission to update these properties. In the case of object names, favor the "Short name".

Whether export or import, the first two lines of an Excel worksheet are reserved for file configuration. Ensure that no data is entered in these first two lines.