Fixed-The MS Excel's insert column option is disabled, after right clicking. I have tried using Excel options, but it's not working. How do I enable it?

Solution for your Insert column/row problem - This situation encounters some time

To solved this problem, follow below steps

1. First off all close all your excel windows
2. Go to directory "%appdata%\Microsoft\Excel" by clicking on window-search button or window explorer
3. Check there for .xlb file and rename that .xlb to .old file. for e.g

    Rename the file:  Excel14.xlb --> Excel14.old

pls note in your machine if number is different then act accordingly as mentioned - Excel15.xlb --> Excel15.old