Was able to get pas thro' the Excel permission rights but still.... stuck in Cannot create ActiveX Component...... for Excel in SSIS SQL2008 R2, Windows 2008 R2 machine.. Sometime back I did something, that worked but still searching what I did...
Due to some DCOM permission settings for Microsoft Excel Application in Component Services. We need to run the command MMC comexp.msc, go to the properties of Microsoft Excel Application, under Identity, change it to The Interactive User from The Launching User (which is set by default). After making this change I was able to run the package as a scheduled Sql job successfully. However, there is still 1 little caveat when we are on x64 Windows 2008 (R2 also) Operating System where Component Services launched in 64 Bit does not show Microsoft Excel Application. In such a scenario we need to launch Component Services in x86 mode with the command MMC comexp.msc /32, rest of things remain the same.