If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

How to Open Excel 2007 Files As Separate Windows. If you work with multiple Excel files over the course of a workday, and especially if you use a dual-monitor setup, you might wonder how you can ...

Overview Excel alternatives like Google Sheets support collaboration but struggle with large files.LibreOffice Calc works offline and is preferred by users focu ...

While it is technically possible to open an Excel file in Notepad, this is not a good idea. Excel files are binary files that contain complex formatting and data structures. When you open an Excel ...

How to Open a Zip File in Excel 2007. A ZIP file usually contains several other files that have been compressed to a smaller size and bundled into a single package with a .zip filename extension.

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.

To recover the file, open Excel once your computer is working properly. A Document Recovery pane should appear with all unsaved Excel files listed (see the screenshot below). Choose the file that you ...

Has someone sent you a .numbers file that you can't open in Excel on your Windows PC? Here's how to edit it using Apple's iCloud apps ...