Upgrade to XLSX for smaller file sizes, enhanced security, modern collaboration features, and to prevent accidental data loss ...

If you cannot open the Excel file from its location, simply open any Excel file and click the File tab. Then, go to Open > Browse and select the file giving error ...

If you often use a computer for work, you've probably encountered some .csv files as part of your daily grind. On the surface, they may seem like a strange alternative to the far more well-known .xlsx ...

Josh Lowensohn joined CNET in 2006 and now covers Apple. Before that, Josh wrote about everything from new Web start-ups, to remote-controlled robots that watch your house. Prior to joining CNET, Josh ...