I recently installed the essbase spreadsheet add-in onto Excel 2010 and it worked fine,(previosuly there was 9.3.1 Excel add-in and i removed and installed Excel add-in 220.127.116.11) but after some days it is giving beolw messgae:-
Excel experienced a serious problem with the 'c:\hyperion\analyticservices\bin\essexcln.xll' addin. . . .Do you want to disable this add-in?
Has anyone else seen this error, know of a work around or whether a new version is in the works?
Try getting it repaired(control panel->uninstall program rather than clicking uninstall click on the application name and in popup click repair) once rather than re-installing and reboot your machine once repaired.
if doesn't help try disabling that add-in and enable it through File->Options->Addins..!!
This generally happens if your excel gets crashed due to some reason / your system gets force shutdown. As suggested above, you can enable it.
Note: When you get that message to disable, do not click yes.