If you receive Cannot open the Clipboard error message when clicking or copy-pasting cells in Excel, take a look at your addins first and then use these fixes.

Fix The Clipboard cannot be emptied, Another program might be using the Clipboard" error in Excel by using these working fixes.

How to Paste From PDF Format to Excel. The PDF extension is a file format used by Adobe Reader, a free software program. However, PDF files are read-only, which means you cannot edit them. If you ...

You cannot paste the transposed cells onto cells that overlap the copied column. That means you cannot copy an entire column by clicking a column header and copy it into an entire row; instead ...