The file extension is not necessarily linked to the format of the file but instead just tells File Explorer how to open and ...

The error in Excel can be fixed by any one of the following 3 methods described below. Hit the File tab and scroll down to the Open option. Select the Browse button ...

3] Select the Change button under the General tab of the file properties. 5] Select the option ‘Always use the selected program to open this type of file’ to make sure that the chosen program ...