hey you can read out the following article to rectify the column errors which you have
https://support.office.com/en-ca/article/Unhide-the-first-column-or-row-in-a-worksheet-d6b47608-80ee-4021-9b51-6a1f57269ec9
Hi CIIPL,
Based on your desicription, did you get the same problem as shown in the following figure?
If yes, please go to VIEW tab and check Gridlines option as shown in the following figure.
Please refer to this article to get more information:
If your issue is more complex, please provide more information about your issue.
I'm glad to help and follow up your reply.
Regards,
Emi Zhang
TechNet Community Su