First go to top menu click on Tools then click on Protection then check if it says "Unprotect" if this is the case then your worksheet is protected and therefore, you will have to unprotect by clicking on "Unprotect". If the protection ask for a password then you will have to provide it to be able to proceed further otherwise, you won;t be able to do so. If you achieve accessing then select the cells you wish o merge and right click and select Format Cells and from there you will have to click on the Alignment tab and select from the bottom by checking the Merge cells then click OK.
The information on Computing.Net is the opinions of its users. Such
opinions may not be accurate and they are to be used at your own risk.
Computing.Net cannot verify the validity of the statements made on this
site. Computing.Net and Purch hereby disclaim all responsibility
and liability for the content of Computing.Net and its accuracy.