If you both use R0014, why did you have to process the file through DWGTRUEVIEW?
Did you ask the file creator aka client why the header read AC032? Seems like you two ought to engage together.
As a general rule, DWG files from newer versions saving back down to older versions create larger files: especially if the original file has content from AEC variants of AutoCAD (and other database designed to be round-tripped back to the newer version).
Why don't you just use WBLOCK command to create a new file only from the items you wish to keep in modelspace? manually select those objects with a window instead of trying a "select all" option.
Did you ask the file creator aka client why the header read AC032? Seems like you two ought to engage together.
As a general rule, DWG files from newer versions saving back down to older versions create larger files: especially if the original file has content from AEC variants of AutoCAD (and other database designed to be round-tripped back to the newer version).
Why don't you just use WBLOCK command to create a new file only from the items you wish to keep in modelspace? manually select those objects with a window instead of trying a "select all" option.