You can specify on the Excel Reader (in the properties when you're creating the reader) that certain columns should be treated as x, y and z coordinates. You'll also need to specify the coordinate system.

How to add symbols to each elements eg. PLAT look like Square , PENE look like Circle , DOOR look like rectangle etc. ?

Maybe this article can give you some ideas:

https://community.safe.com/s/article/autocad-to-ifc-conversion-example

@david_r​ and @Hans van der Maarel​ and @daveatsafe​ Not getting it quite right, i have used the article and recreated the workbench but it does not export IFC at the end only attributes are exported. For reference i have attached WORK and Data template (i have distorted XYZ and would not match or create any object, but if u wish to try you could INPUT XYZ values) . I am also missing step to give shapes to Gtype objects like square, rectangle, triangle, think line etc. for each Gtype. thank you with your previous input as well.

When running till AttributeCreator, i could see all the points, when writing to IFC it looses all and nothing is get write out . Any idea . Highly obliged with help .

attached is the most updated Workbench