set default new sheet size in calc, ie: (15 columns x 50 rows)?

how do I set a default CALC new sheet size, ie: (15 columns x 50 rows)?


you cannot do that - each sheet has 1024 columns and 1048576 rows (always). You could create a new (default) template which hides 1024-15=1009 columns and 1048576-50=1048526 rows.

See the following sample template file: Template-15x50.ots

Hope that helps.