# Excel - Operation failed **URL:** \ **Category:** Revit\ **Tags:** revit, excel, dynamo\ **Created:** [April 22, 2018, 1:10pm UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289 "2018-04-22T13:10:58Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![danielU3R39](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/danielu3r39/32/97504_2.png) [@danielU3R39](https://forum.dynamobim.com/u/danielU3R39)\ **Post date:** [April 22, 2018, 1:10pm UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/1 "2018-04-22T13:10:58Z")
Hi, I have been struggling to fix an error with the Excel and CSV Import and Export nodes. When using them, I receive the following error. I have search the forum and reinstalled Excel, upgraded Excel, Reinstalled Dynamo, and Reinstalled Revit, with no improvement I am currently running: Revit 2017.2 Dynamo 1.3.2 Excel 2013 (32bit) Note I have installed Excel 2016 and this didnt help. I have also deleted the 1.8 file in the registry. Any ideas would be greatly appreciated! ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/0/d/0d07f8f0c542f33d30ef386fbb594237ac0978b6.png) ---
**Author:** ![Michael\_Kirschner2](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/michael_kirschner2/32/75576_2.png) [@Michael\_Kirschner2](https://forum.dynamobim.com/u/Michael_Kirschner2)\ **Post date:** [April 22, 2018, 3:36pm UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/2 "2018-04-22T15:36:44Z")
I do recall someone on the forum stating that the 64 bit version of excel was required. ---
**Author:** ![Kulkul](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/kulkul/32/49801_2.png) [@Kulkul](https://forum.dynamobim.com/u/Kulkul)\ **Post date:** [April 22, 2018, 3:45pm UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/3 "2018-04-22T15:45:54Z")
Hi @Michael_Kirschner2 Was it this topic? > [@Write To Excel Node and Excel 2016](https://forum.dynamobim.com/t/write-to-excel-node-and-excel-2016/3487/5): > > Hey Garret, I think the reason is your using 64 bit operating system but you installed office 32 bit. You need to install 64 bit office 2016. Good Luck! ---
**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:** [April 22, 2018, 3:52pm UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/4 "2018-04-22T15:52:27Z")
Curious to see the csv export issue though… that shouldn’t be impacted by a 32 bit excel install, right? ---
**Author:** ![Marcel\_Rijsmus](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/marcel_rijsmus/32/8539_2.png) [@Marcel\_Rijsmus](https://forum.dynamobim.com/u/Marcel_Rijsmus)\ **Post date:** [April 22, 2018, 6:10pm UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/5 "2018-04-22T18:10:06Z")
The FilePath node gives me a file including extension, i don’t see that in your graph. ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/4/0/406efce398b66d511598e1c9cbb199dfe3c53dd7.png) btw. i think Excel 64-bit is only needed when using RevitDBLink ---
**Author:** ![danielU3R39](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/danielu3r39/32/97504_2.png) [@danielU3R39](https://forum.dynamobim.com/u/danielU3R39)\ **Post date:** [April 23, 2018, 5:11am UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/6 "2018-04-23T05:11:47Z")
Thank you everyone, however @Marcel_Rijsmus may be right, 64bit is not necessary, as I have checked colleagues PCs with the same set up and it works fine. @Marcel_Rijsmus But the file path is fine, its just shortened (automatically by Dynamo). I have also just done the same test in Dynamo 2.0 with the same issue. If anyone has any other suggestions, please let me know! Otherwise I am strongly considering factory resetting my computer and re-installing everything again (which I would prefer not to waste time with) Thank you ---
**Author:** ![danielU3R39](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/danielu3r39/32/97504_2.png) [@danielU3R39](https://forum.dynamobim.com/u/danielU3R39)\ **Post date:** [May 8, 2018, 5:52am UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/7 "2018-05-08T05:52:18Z")
Jacob, I have recently re-tried and CSV now works again. But Excel does not. Another plugin within Revit i recently used tried to access excel and couldn’t due to something like Excel.Interop.Application error. Any ideas? Thank you ---
**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, 2018, 6:27am UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/8 "2018-05-08T06:27:48Z")
My guess: you need to update to a 64 bit version of excel. ---
**Author:** ![danielU3R39](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/danielu3r39/32/97504_2.png) [@danielU3R39](https://forum.dynamobim.com/u/danielU3R39)\ **Post date:** [May 8, 2018, 6:30am UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/9 "2018-05-08T06:30:18Z")
Thank you. I have checked on a colleagues machine with 32bit Excel and it works no problem… Is a full reset my only option? ---
**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, 2018, 6:32am UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/10 "2018-05-08T06:32:36Z")
Not your only but likely the fastest fix. Why are you using 32 bit? ---
**Author:** ![danielU3R39](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/danielu3r39/32/97504_2.png) [@danielU3R39](https://forum.dynamobim.com/u/danielU3R39)\ **Post date:** [May 22, 2018, 11:54am UTC](https://forum.dynamobim.com/t/excel-operation-failed/21289/11 "2018-05-22T11:54:28Z")
All & @jacob.small, Thank you for all your assistance. My computer recently did a Windows update to Build 17134 of Windows 10 Pro, and now it works!! Phew 😀