If a customer or client sends you an XLS file and you just need to read it, you don't need to purchase Microsoft Office Excel. You can open an XLS file using a free online tool, the free ...

Can I open a CSV file without Excel? Yes ... Read: How to Convert CSV to Excel (XLS or XLSX) using Command line.

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 ...

That’s it. The Excel file should open in Numbers. Before you start working on your spreadsheet, look it over carefully. Formatting may have changed, especially with charts. Check to make sure ...