How to fix it?
In this guide fromMiniTool Website, we will show you 3 effective ways to solve this issue.
Luckily, this problem can be fixed easily with the solutions mentioned below.

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To initiate the file with Excel, follow the instructions given below:
Step 1.

Navigate the file inFile Explorerand right-hit it.
Choose theOpen withoption and selectExcelfrom the list of programs.
If this is the case, you must change the default software for file types.

To do so:
Step 1.
Go toApps>Default apps>Set defaults by app.
Scroll down to findExcel, hit it, and pressManage.
For example, if the icon is Notepad, press it and select Excel as the default jot down.
If there is no icon, hitChoose a default.
If not present, choose to look for an app in the Microsoft Store and then choose Excel.
Heres how to check the file extension of the file:
Step 1.
PressWin+Eto openFile Explorerand navigate to the file.
Click onView> tickFile name extensions> verify if the extension of the file is compatible with Excel.
Ideally, the extension of the Excel file is.xls,.xlsx,.xlm, or.csv.
Also, changing the file extension to the ones mentioned above to check for any improvement.