I notice you've mentioned "DoubleCAD XT 6" but didn't specify what kind of text you need.
DoubleCAD XT 6 followed version 5 with improved stability and features, such as the ability to set line length and angle via tabbed input boxes while drawing, which was reportedly buggier in previous versions. While a "Pro" version ($695) existed with extended capabilities like a software development kit (SDK), the free XT version remains widely used for standard 2D detailing. doubleCAD XT - Alternativa gratuita ao AutoCAD doublecad xt 6
DoubleCAD XT 6 was a freeware 2D/3D CAD software by IMSI Design, discontinued around 2015 (replaced by TurboCAD). I notice you've mentioned "DoubleCAD XT 6" but
Includes a rich set of 2D geometric tools, constraints, and annotation features. Why Choose DoubleCAD XT 6 Over Other Free CAD Tools? doubleCAD XT - Alternativa gratuita ao AutoCAD DoubleCAD