# How to update pipe start invert & pipe end invert elevation on pipe network from excel **URL:** \ **Category:** Civil 3D\ **Tags:** excel, python, geometry, dynamo, civil3d\ **Created:** [April 21, 2026, 7:49pm UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461 "2026-04-21T19:49:10Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![mabdelwahedHMVM8](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mabdelwahedhmvm8/32/163968_2.png) [@mabdelwahedHMVM8](https://forum.dynamobim.com/u/mabdelwahedHMVM8)\ **Post date:** [April 21, 2026, 7:49pm UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/1 "2026-04-21T19:49:10Z")
Hi, How to update pipe network ( **Pipe** **start invert & Pipe end invert elevation** ) from excel when i have reference pipe name match in excel and civil 3d ? Hope anyone test this by python or dynamo Attached example civil file (3 pipes) and excel with updated invert start and invert end [Drawing1.dwg](https://forum.dynamobim.com/uploads/short-url/qFsGSGLFBwpN0cEhn4vOal0R3E1.dwg) (989.8 KB [Worksheet.xlsx](https://forum.dynamobim.com/uploads/short-url/ckkKIOLPv5u4yJXDq1ppNMUlvCA.xlsx) (8.6 KB) ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/f/ffce10dfcf50bba9cae46c8e77de4b790153327e.png) ---
**Author:** ![ISECnico](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/isecnico/32/198892_2.png) [@ISECnico](https://forum.dynamobim.com/u/ISECnico)\ **Post date:** [April 22, 2026, 7:10am UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/2 "2026-04-22T07:10:11Z")
You can change the pipe elevations using `Pipe.SetStartInvert` and `Pipe.SetEndInvert` nodes. ![C3D_SetPipeInvertFromExcel](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/b/5/b5bc592952989d1953abb5205c8572077e2ab5e6.png) [C3D\_SetPipeInvertFromExcel.dyn](https://forum.dynamobim.com/uploads/short-url/2zrFgUgwO9j3u7ONL0ZQlfvaNik.dyn) (31.2 KB) ---
**Author:** ![mabdelwahedHMVM8](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mabdelwahedhmvm8/32/163968_2.png) [@mabdelwahedHMVM8](https://forum.dynamobim.com/u/mabdelwahedHMVM8)\ **Post date:** [April 22, 2026, 7:44am UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/3 "2026-04-22T07:44:58Z")
**Thank you [ISECnico](https://forum.dynamobim.com/u/isecnico), It has been successfully working another question, i added also pipe diameter on excel if it can be done please update the .dyn** [Worksheet-01.xlsx](https://forum.dynamobim.com/uploads/short-url/wr5tdu4fCh96zahcv4jCTJP6TA2.xlsx) (8.6 KB) ---
**Author:** ![ISECnico](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/isecnico/32/198892_2.png) [@ISECnico](https://forum.dynamobim.com/u/ISECnico)\ **Post date:** [April 22, 2026, 8:01am UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/4 "2026-04-22T08:01:13Z")
@mabdelwahedHMVM8, you are welcome! 😃 > [@mabdelwahedHMVM8](#): > > please update the .dyn On this forum, we try to encourage a DIY (do it yourself) attitude to problem solving. I think you should look for the `Pipe.Resize` node and see if you can improve the graph yourself. Good luck and feel free to post again if you have issues. 🍀 ---
**Author:** ![Brendan\_Cassidy](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/brendan_cassidy/32/7685_2.png) [@Brendan\_Cassidy](https://forum.dynamobim.com/u/Brendan_Cassidy)\ **Post date:** [April 22, 2026, 8:04am UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/5 "2026-04-22T08:04:36Z")
You could try to utilise “Pipe.Resize” node that may be able to help but do watch out that it may choose the incorrect part type(eg concrete instead of PVC) Or a better one is to use “Pipe.Swap” and input the right part size and family name into it ---
**Author:** ![mabdelwahedHMVM8](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/mabdelwahedhmvm8/32/163968_2.png) [@mabdelwahedHMVM8](https://forum.dynamobim.com/u/mabdelwahedHMVM8)\ **Post date:** [April 22, 2026, 8:15am UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/6 "2026-04-22T08:15:58Z")
> [@ISECnico](#): > > Thanks for the guide node **Pipe.Resize** and I did it ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/e/f/efa4f0a947516f84bdd419880841d3e1c03869f5.png) ---
**Author:** ![drhineUBR88](https://avatars.discourse-cdn.com/v4/letter/d/22d042/32.png) [@drhineUBR88](https://forum.dynamobim.com/u/drhineUBR88)\ **Post date:** [May 8, 2026, 1:34pm UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/7 "2026-05-08T13:34:50Z")
i downloaded this workspace and a lot of the nodes are dummy nodes. why is that? ---
**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\ **Post date:** [May 8, 2026, 2:07pm UTC](https://forum.dynamobim.com/t/how-to-update-pipe-start-invert-pipe-end-invert-elevation-on-pipe-network-from-excel/114461/8 "2026-05-08T14:07:22Z")
You’re likely missing a package or in the wrong context (i.e.Dynamo for Revit instead of Dynamo for Civil 3D)