You can use drawings or images from other applications by opening them in specific formats. AutoCAD LT handles conversion for DXF and WMF formats. You can convert the formats by using commands associated with each file type. You also can convert a file by opening or importing it.
A DXF file is an ASCII or binary description of a drawing file. It is used to share drawing data between applications.
You can import a DXF file into a new drawing only. After saving the new drawing, you can insert it into any other drawing file and explode it.
WMF (Windows metafile format) files are frequently used to produce clip art and other nontechnical images that you need for drawings. You can import a WMF file into AutoCAD LT as a block. Unlike bitmaps, WMF files contain vector information and can be resized and printed without losing resolution. If the WMF file contains solids or wide lines, you can turn off their display to increase drawing speed.
WMF files can contain both vector and raster information. AutoCAD LT reads in both types of information. When a WMF file containing raster information is read into AutoCAD LT, it cannot be edited in any way other than being resized.