1138 Log ASCII Standard Format 2.0 Text (Structured), Dataset 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 01 Jan 1992 1 Digital Preservation Department / The National Archives 25 Nov 2011 25 Nov 2011 fmt/390 PUID las File extension 576 Log ASCII Standard 2.0 Header ASCII: ~V followed by version and standard information (VERS. 2. CWLS (LOG ASCII STANDARD|LAS) VERSION 2.) and then mandatory logging data recorded in Well Information Section (~W), Curve Information section (~C), and ASCII Log Data section (~A). 1 Absolute from BOF 0 264 7E56*564552532E*322E*(4C4153|43574C53)20(4C4F47204153434949205354414E44415244|4C6F67204153434949205374616E64617264|6C6F67204153434949205374616E64617264|4C4153){1-3}56(455253494F4E|657273696F6E)20322E[30:31]*7E57*7E43*7E41 Is previous version of 1139 Log ASCII Standard Format Is subsequent version of 1137 Log ASCII Standard Format