Some version of AutoCAD made a backup copy of opened CAD image in a BK1 format. It is not clear whenever the BK1 file is just renamed copy or somewhat altered, but your best bet is to recover it in the program through normal means, instead making conversion or renaming the file.
Home > Search converters: bk1 to dwg
Conversion of bk1 file format to dwg file format beta
Search for bk1 to dwg converter or software able to handle these file types.
Convert Autodesk AutoCAD backup to AutoCAD drawing.
We have found 2 software records in our database eligible for .bk1 to .dwg file format conversion.
Microsoft Windows software 
- convert bk1 to dwg on Windows
AutoCAD
Leading 2D and 3D CAD development software from Autodesk
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from bk1 file | No | Yes | No | No | Yes | No | No | No |
to dwg file | No | Yes | Yes | dwg editor | Yes | No | Yes | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned bk1 to dwg. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software 
- convert bk1 to dwg on OS X
AutoCAD for Mac
A Mac version of popular Autodesk AutoCAD software
Additional links: Open bk1 file, Open dwg file
BK1
A bk1 file extension is related to the AutoCAD a CAD and CAM solution software. A bk1 file stores backup of CAD drawing.
DWG
Files with dwg extension are used for the original CAD format originally introduced in Autodesk AutoCAD. The latest version of DWG format is usuaually proprietary and can only be created in AutoCAD. Other CAD programs can usually import it but not create its proprietary form. Because of this, DWGs are often exported to DXF interchange format so that they can be seamlessly used in other CAD programs.
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