[seenu87]

I am developed two different graphs in separate .xib files.
In same project i have done this two separate .xib files

how to merge this in one new xib files.

for example i draw a line and bar graph in two separate .xib files. how to merge this in new .xib file as compound graph(line and bar)

[msencenb]

I'm a little unclear by what you mean but generally a xib file is for a certain view so you should probably create a third xib file for the combination view.