From my experience as a software developer, I know that reading data from a format such as DWG can be fraught with obstacles. The first thing I did was to check that DWG files opened in ZWCAD+ contained the same list of basic entities that are created by AutoCAD. With the origins of DWG and DWF file formats firmly rooted by Autodesk in AutoCAD, I will use AutoCAD as the benchmark. When talking about file format compatibility, it is important to understand exactly what ZWCAD+ is trying being compatible with. I’ll also review their cloud offering and their. ZWSOFT positions its ZWCAD+ software as a strong alternative to AutoCAD, and so in this review I will look at how compatible it is with DWG and DWF files. DWG compatibility: does it read AutoCAD entities? Does it support a cloud-based workflow? And will 3rd-party AutoCAD programs work? But how many can really step in and do the same job? An AutoCAD user takes ZWCAD+ to the test in 3 crucial areas. By William Forty The CAD world is full of competitors to AutoCAD.