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ODA Viewer

ODA Viewer incorporates the power and flexibility of ODA
into a single application that can visualize all ODA supported file formats
and illustrate other visualize-related features like visual styles and markup.

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ODA Drawings Explorer

View .dwg and .dgn files with this free application
available for Windows, Linux, MacOS and Android.

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ODA File Converter

Convert between .dwg and .dxf file formats with this Windows application.
With wildcard support for input file specification, it allows .dxf files to be used as input.

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Specification for .dwg files

Use this open design document to specify the .dwg file format.
It covers headers, entities, table entries, objects, raster images,
object maps, and bookkeeping information.

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