When you do a backup of a picture using Canvas software, a .bak file is generated from it and saved in secure location. So if you for example would open and edit .dwg file using Canvas a .bak file from this would be generated. However, this is not really a conversion and quite frankly a dwg to bak conversion could mean a lot of possible conversions.
Convert AutoCAD drawing to Canvas drawing backup file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert dwg to bak on Windows
A drawing software used to create technical illustrations and graphics
Convert from dwg file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.