Sometimes when you generate reports in Lineardraft and open them up in Excel you may notice wire names may be incorrect, perhaps with the appearance of underscores which were not present previously.
This is because Excel limits the characters that can be used when naming sheets. Lineardraft will replace any not permissible characters (such as square brackets, seen in the image below) with underscores.
More info: See the following link to the Microsoft Support Centre for information on how to rename your sheets in Excel and for a full list of the limitations of a sheet name.