If Microsoft Excel fails to recognize a file in the XLSX or XLS format, the data contained in the file could be corrupted. When you open a corrupted workbook in Excel, the program should ...

With Office 2007, Microsoft introduced entirely new file formats for Word, Excel, and PowerPoint. Designated by an x at the end of the file extension (.docx instead of .doc, and so on), these were ...

You can open the file in Excel, or you can import the data using an Excel wizard. The two most common text file formats you’ll work with are .txt and .csv, where .csv stands for comma separated ...

To fix the “Excel file format and extension don’t match” error, first check if the file extension matches its format. Try renaming the file with the correct extension (e.g., .xlsx for Excel ...

Microsoft Excel for the Web can now open and edit more files than ever When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works .

Excel for the web supports custom formats and data validation. How to determine requirements in Excel Phone numbers have 10 numeric digits and generally use the (xxx) xxx-xxxx format.

Sending Excel files containing crucial financial and business data has risks. To add a layer of protection, you should learn to password protect an Excel file. ... Microsoft Excel. A PC.