Everything points to the fact that dxf to iges conversion is one of the most common CAD conversions and should be doable pretty much in every modern 3D modeling / CAD software as both DXF (.dxf) and IGES (.igs, .iges) are well-supported. This is usually used for making a 3D model based on 2D drawing of some part (slice view).
Open DXF file Open IGES fileA CAD viewer program with conversion capabilities
A CAD and Gerber conversion software
A set of 3D modeling tools
A 3D modelling software
3D CAD/CAM tool for product development
A high performance 2D CAD program
Creo Parametric (formerly known as Pro/ENGINEER) is a complete 3D CAD software solution by PTC
A CAD converter with huge format support
A CAD/CAM for material working industry
An open source multiplatform 3D CAD/MCAD/CAx/CAE/PLM modeler
A dedicated 2D/3D CAD software
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A suite of CAD applications
A CAD drawing and CNC programming system