A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
The paste function not working is a widely reported problem in Excel since a recent update, Microsoft indicate they are working to resolve the problem and will provide an update when they find the underlying problem, ensure you keep your Office version fully up to date to ensure you get the patch when they release it.
In the meantime, users report these two workarounds may work until this is resolved.
1
Copy the data, then instead of using Paste, select Paste Special and either paste Values or Formula, depending on the data you have copied.
2
Instead of copying the data, cur the data (Ctrl + X) then undo the cut using Ctrl + Z and then try pasting the data you have cut.