Use this command to convert all of the TAB characters within a FILE to spaces. This uses the Tab Settings to determine how the tab character/tab stop is to be interpreted. The conversion is performed such that the formatting will remain the same.
If a portion of the file is selected/highlighted only the selected portion is converted, otherwise the complete file is converted.
To convert spaces to tabs use the Spaces to Tabs (Leading) or Spaces to Tabs (All) command.