"Aeronautical Data Catalogue" National Extension of the Republic of Latvia​:

Description of aeronautical data catalogue (MS Word)

Table A1-1 Aerodrome data - (MS Excel)

Table A1-2 Airspace data - (MS Excel)

Table A1-3 ATS and other routes data - (MS Excel)

Table A1-4 Instrument flight procedure data - (MS Excel)

Table A1-5 Radio navigation aids/systems data - (MS Excel)

Table A1-6 Obstacle data - (MS Excel)

Table A1-7 Geographic data - (MS Excel)

Table A1-8 Terrain data - (MS Excel)

Table A1-10 Information about national and local regulations, services and procedures - (MS Excel)