1064 ESRI Spatial Index File GIS This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’. Text 1 Digital Preservation Department / The National Archives 21 Jan 2011 21 Jan 2011 fmt/319 PUID sbn File extension sbx File extension 413 ESRI Spatial Index File Regularly recurring header sequence 1 Absolute from BOF 0 0000270AFFFFFE700000000000000000000000000000000000{3}00[00:01]