On the right side, select the Open checkboxes for the file types that you want to open in the Protected View. Now, select the Open selected file types in Protected View radio button at the bottom.

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.

File-security limits can curtail your ability to open or save Microsoft Excel files.

How to open a .csv file in Excel Opening a .csv file is as easy as opening a .txt file, and usually, you won’t have to clean up the data before doing so because the save task inserts the delimiter.

A CSV (comma-separated values) file is a text file in which information is separated by commas. CSV files are most commonly encountered in spreadsheets and databases. You can use a CSV file to ...

It’s a formula language to take your Excel skills to the next level. In this post, I will show you how to use DAX to supercharge your Excel formulas and make them efficient, flexible, and powerful.