Exporting time-string data
1. Open the export dialog
To start the export you can either press the button "Export time-string", use
the shortcut "Alt+E" or, if the program is running in expert mode, start the
Data Manager and select the option
"Export time-string data". In any case the following dialog will show up:

2. Set the output format
The dialog contains two columns: the left text box lists all data columns that
can be exported. To the right there is another box, which
defines the structure of the columns in the resulting file. Now select
the columns to be exported from the list of available columns. Click on
the button Add to add these columns to the list on the right. If you
want to remove a column that you have added before, simply select the
column-name in the "Columns to export" -list and press Remove.
When writing files on disk, two output options are available: one can select between common ASCII output (simple textfile) and output in the VO Table format. More information about the VO Table format can be found here.
Finally, when you have finished your selection, press Ok.

In the example shown above we have chosen the columns 'Time', 'Observed' and
'Calculated' for export.
3. Choose a file name
Now, a file chooser will ask you for a name for the file. Enter a file name
and press "Export" to start the export of the data. If you don't specify an extension Period04 will add ".dat" to ASCII files or ".xml" to files saved in VO Table format.