Notes about the 007 file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The 007 file type is primarily associated with 'International S-57 Hydrographic Data' by US NOAA / US Army Corps of Engineers. A vector-based digital file containing marine features suitable for marine navigation. The file is based on the International Hydrographic Organization (IHO) S-57 standard. The file extension, ".000," for a base NOAA ENC cell is used for updating. The first update for a cell will be ".001" the next ".002" and so forth. The file extension .031 is used for catalog data (metadata) relating to the chart data.