Microsoft Office Excel showing error while add some new rows and columns

Experts and professionals, this should be an easy problem for you to solve.

Why am I getting this type of errors? Please suggest answers to resolve this issue.
Thanks a lot.

Experts and professionals, this should be an easy problem for you to solve.
Why am I getting this type of errors? Please suggest answers to resolve this issue.
Thanks a lot.
Hi Dear,
This error may occur if a formula has been added to the entire worksheet or if formatting has been added to an entire column or row.
Please follow these steps
Hope this solution is helpful for you.
Maybe you are trying to add your formula to the entire worksheet or you are adding a border that is added to the whole column or row. Just simply remove any formatting that you did on the remaining columns and rows. And also, try to follow the resolution below:
Click the first cell on the column and then press and hold the Ctrl + Shift keys. Press the right arrow key so you can select the entire columns to the right from the first column that you clicked. Click Edit and then Delete. Click the blank row on the bottom. Press and hold the Ctrl + Shift again and then press the down arrow key to select the rows. This is below the first row that you just clicked. And then Edit and Delete again. You can also remove the border by clicking on the Format > Cells > Border. And click None and select OK.
Thanks guys. Mcbrel you are great, your step by step instructions are very helpful and easy. Your easy instructions can be followed by any non-expert user too. After following these steps, I have eliminated my problem and now I am able to add columns into the spreadsheet. Again I have started to work on my spreadsheet without any problem.