Symbols are used for example in various places in drawings, for example, as separate objects, and in marks.
You can create symbols with Symbol Editortool in Tekla Structures that is used for creating and modifying symbols to be used in drawings, reports, and templates
The symbols are saved in symbol files.
. In this case, the file name extension is .sym. You can also use symbols of .dwg format.
Tekla Structures symbol files are by default located in the folder ..\environments\common\symbols.