# Unable to Write to Excel

**URL:** <https://forum.dynamobim.com/t/unable-to-write-to-excel/15685>\
**Category:** FAQ\
**Created:** [October 16, 2017, 6:37pm UTC](https://forum.dynamobim.com/t/unable-to-write-to-excel/15685 "2017-10-16T18:37:16Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![awilliams](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/awilliams/32/114496_2.png) [@awilliams](https://forum.dynamobim.com/u/awilliams)\
**Post date:** [October 16, 2017, 8:14pm UTC](https://forum.dynamobim.com/t/unable-to-write-to-excel/15685/4 "2017-10-16T20:14:31Z")

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@Mike_Engel1 Do you have Microsoft Office 365 Business by chance? I recently had this problem after Office 365 updated, and @Kulkul recommended uninstalling and reinstalling Microsoft Office 365 Business - after this my Excel nodes in Dynamo worked again. This thread here also offers some other solutions:

> [@Excel.ReadFromFile operation failed](https://forum.dynamobim.com/t/excel-readfromfile-operation-failed/14539/3):
>
> @htlcnn, sometimes something goes wrong with Excel. Have a look at the known issues here: Excel nodes can be rendered non-functional by bad registry data. To correct this: Go to Start–\> Run --\> regedit. Browse to HKEY\_CLASSES\_ROOT–\>TypeLib–\>{00020813-0000-0000-C000-000000000046}. Delete the 1.8 key. We recommend using Excel 2013 or higher. Excel 2010 works in most cases, but 2007 does not. You can also dive into this thread, maybe, it’ll help you: [Excel Nodes Fail Dynamo 1.1.0](https://forum.dynamobim.com/t/excel-nodes-fail-dynamo-1-1-0/5450)

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