# Data.ImportExcel operation failed! **URL:** \ **Category:** Uncategorized\ **Created:** [October 10, 2019, 11:11am UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648 "2019-10-10T11:11:40Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![omarbsbg](https://avatars.discourse-cdn.com/v4/letter/o/90db22/32.png) [@omarbsbg](https://forum.dynamobim.com/u/omarbsbg)\ **Post date:** [October 10, 2019, 11:11am UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648/1 "2019-10-10T11:11:40Z")
Could anyone help me and tell me what is happening? this node was working perfectly. and now I use it in another PC with the same Revit and dynamo Ver. and now it’s giving me error! ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/1/4/14e4a5b195e0a25d820eecf56459bd5a0bec18f0.png) ---
**Author:** ![john\_pierson](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/john_pierson/32/191977_2.png) [@john\_pierson](https://forum.dynamobim.com/u/john_pierson)\ **Post date:** [October 10, 2019, 11:49am UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648/2 "2019-10-10T11:49:30Z")
Do you have Excel installed on the machine that the screenshot is from? ---
**Author:** ![lee6800](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/lee6800/32/82529_2.png) [@lee6800](https://forum.dynamobim.com/u/lee6800)\ **Post date:** [October 10, 2019, 11:54am UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648/3 "2019-10-10T11:54:06Z")
You could shared your graph (dyn file) and that will enable people to help you better. ---
**Author:** ![omarbsbg](https://avatars.discourse-cdn.com/v4/letter/o/90db22/32.png) [@omarbsbg](https://forum.dynamobim.com/u/omarbsbg)\ **Post date:** [October 14, 2019, 10:08am UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648/4 "2019-10-14T10:08:01Z")
I think it’s might something related to Windows? see attached dyn. file I have windows 10 home 64x in this computer it was working perfect before on windows 10 professional service back 1[Book1.xlsx](https://forum.dynamobim.com/uploads/short-url/yc8J3yDrn9VJZ6VIGX2VAGxFU2X.xlsx) (8.5 KB) [Home.dyn](https://forum.dynamobim.com/uploads/short-url/8aEedj5sWWUbyp38zfMQBPgnG00.dyn) (8.2 KB) ---
**Author:** ![lee6800](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/lee6800/32/82529_2.png) [@lee6800](https://forum.dynamobim.com/u/lee6800)\ **Post date:** [October 14, 2019, 3:56pm UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648/5 "2019-10-14T15:56:07Z")
I tried your graph and it is working ok here. Windows 10 Enterprise 64x Revit 2019.2.1 Dynamo 2.0.2 ---
**Author:** ![assajero](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@assajero](https://forum.dynamobim.com/u/assajero)\ **Post date:** [October 15, 2019, 5:35am UTC](https://forum.dynamobim.com/t/data-importexcel-operation-failed/41648/6 "2019-10-15T05:35:31Z")
Hello All, after long research to understand the problem core, it’s not about Revit, or Dynamo, or Microsoft, as many people says the file works on them PC and other PCs not working, it’s all about windows NET updates Some users suggest reinstalling Revit or Dynamo or MS office, or make some Regedit editing, and mostly people who reinstall the office the Dynamo works back perfectly and no more errors, however some still have the same issue. the real issue is related to windows updates, reading the error in detail and research to the error related on windows support, it’s end with you need to have the below updates, or you could download it from Microsoft website for free and then it will works perfectly - Microsoft .NET Core Runtime - 2.0.7 (x64) - Microsoft NET Framework 4.8 This is was my experience, and how I solve the issue from it’s roots