The import of CAD floor plan only supports wall lines. When there are redundant line segments in the CAD interface, a prompt of "File is too large" will be displayed. The following steps can solve the problem:

1. Left-click to select the floor plan graphics with the mouse, and then press Ctrl+C to copy;

2. Click the New button in the upper left corner of the CAD software - click acadiso - click Open to create a new CAD file;

3. In the new CAD file, press Ctrl+V to paste the graphics, save it as a DXF format and then upload.