# Export values to Excel

**URL:** <https://forum.dynamobim.com/t/export-values-to-excel/8265>\
**Category:** Revit\
**Created:** [December 15, 2016, 7:39pm UTC](https://forum.dynamobim.com/t/export-values-to-excel/8265 "2016-12-15T19:39:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![BradyLCL](https://avatars.discourse-cdn.com/v4/letter/b/ce7236/32.png) [@BradyLCL](https://forum.dynamobim.com/u/BradyLCL)\
**Post date:** [December 15, 2016, 7:39pm UTC](https://forum.dynamobim.com/t/export-values-to-excel/8265/1 "2016-12-15T19:39:02Z")

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Hi all…

I’m trying to get my Dynamo script to export the mullion and glazing values to Excel. I’m running into problems with the list showing “nulls”…but when I look at the list there are no “nulls”…and even when I add the remove nulls node, the error is still showing that the “value cannot be null”. (and credit to Josh Moore, I used his ideas when starting this script).

Can someone help?

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/a/a/aab4ffa3c39251feac97dafab159bcc523ec718e.png)

…full script uploaded…[Export Wall Types To Excel.dyn](https://forum.dynamobim.com/uploads/short-url/qy2ZZlQrtJEIZjXh4DAtsNsotVY.dyn) (23.0 KB)

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**Author:** ![Yna\_Db](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/yna_db/32/30641_2.png) [@Yna\_Db](https://forum.dynamobim.com/u/Yna_Db)\
**Post date:** [December 16, 2016, 7:55pm UTC](https://forum.dynamobim.com/t/export-values-to-excel/8265/2 "2016-12-16T19:55:54Z")

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Hello, you can try _RemoveNull_ from _DanEDU Dynamo_ just before _Math.Sum_