For importing and exporting ASCII (plain text) files containing logs, the files are expected to be in the following format:
Values within a line are separated by a delimiter character. The delimiter can be a comma, space, tab, or a combination of tabs and spaces ("whitespace").
The first line contains the name of the index (for example, depth or time) and the names of the logs.
The second line contains the type of units for the index and for each of the logs.
The third and following lines contain the index value and the log values.
The following illustrates this format:
index_name log_name1 log_name2
index_units log_units1 log_units2
index1 value1_1 value2_1
index2 value1_2 value2_2
...