NX Multiple Longitudinal Y frames Ship grid definition from concept from spread.

Load (or update) multiple sets of Longitudinal Y Frames from spreadsheet does not work.

It seems Concept from Spreadsheet function handles only 1 (the last) line of the spreadsheet entry. The previous lines are ignored.

In this configuration file, the instance name is key. You cannot have duplicate key. That is, if you have a duplicate key, one is dropped. In the example first line 31 is ignored and only line 32 is imported.
Instead, you can leave the cell blank to specify that it is the same as above in the INSTANCE_NAME column.

This is part off functionality in NX Ship Design > Application General Arrangement > Ship Grid Definition > Concept from Spreadsheet.

Grid Spreadsheet