Excel may not display the XLS file if another option is selected, giving you the impression that it can't open it.

If the Sorry, Excel cannot open two workbooks with the same name at the same time error is preventing you from using Excel, see this post.

Warren Smith can't preview Word or Excel files in Windows Explorer. He asked the Answer Line forum for help.

Malware can exploit your computer and your private information, but only if it manages to install itself. Microsoft Excel files -- and other formats that Microsoft Office applications generate -- can ...

Can’t type numbers or enter data into Excel cell The troubleshooting guidelines to deal with this problem are explained below. But before you proceed, close all the Excel files and open Excel again.

Numbers has the ability to open Excel files so you can work on them. You can also export spreadsheets in Numbers so that they are compatible with Excel.