# Iteration help

**URL:** <https://forum.dynamobim.com/t/iteration-help/70886>\
**Category:** Revit\
**Tags:** dynamo\
**Created:** [November 30, 2021, 11:16am UTC](https://forum.dynamobim.com/t/iteration-help/70886 "2021-11-30T11:16:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![thavasimanis](https://avatars.discourse-cdn.com/v4/letter/t/9de053/32.png) [@thavasimanis](https://forum.dynamobim.com/u/thavasimanis)\
**Post date:** [November 30, 2021, 11:16am UTC](https://forum.dynamobim.com/t/iteration-help/70886/1 "2021-11-30T11:16:49Z")

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I am new to this forum. I have some knowledge in Lisp programming. I need iteration help.  
I have the set of family files in a location and i have an excel file which contains the X,Y,Z, and respective family names to that co-ordinates to be placed.  
I need a help that dynamo to read the co-ordinates and the family name from that excel file and need to place the families in the respective co-ordinates.

Thanks and Regards  
STM

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**Author:** ![Daan](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/daan/32/82246_2.png) [@Daan](https://forum.dynamobim.com/u/Daan)\
**Post date:** [November 30, 2021, 1:45pm UTC](https://forum.dynamobim.com/t/iteration-help/70886/2 "2021-11-30T13:45:42Z")

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Hi @thavasimanis ,

- You’ll have to import your X, Y and Z-values as numbers and route those into a Point.ByCoordinates Node.
- You’ll have to do something similar for your Families, how are they stored now?
- After that simply route the two outputs of those into a node called FamilyInstance.ByPoint.

That’s it 🙂