How to Fix FileType Selected Not Supported by This App

Practical way to resolve the error "This app does not support selected file type" in Teams and Excel

Have you ever encountered a frustrating "This app does not support selected file type" error when opening a file using Teams or Excel? This blog post by MiniTool will provide several effective solutions.

"This app does not support the selected file type" error

Recently, some users have reported "This app does not support the selected file type" error when trying to access Excel files in Microsoft Teams and Excel. A user described his problem:

I can't select a new file by setting. I tried adding a new Excel tab and it still didn't work, showing "This app does not support selected file type" error. We have been using this tab for over a year and we change the loaded files every week. Nothing changes, the file is in .xlsx format.

Let's see how to solve this annoying problem.

How to fix "This app does not support selected file type" error in Teams and Excel

Before you try an advanced solution, you need to perform some basic troubleshooting steps, such as restarting your computer, restarting Teams and Excel, updating Windows to the latest version, updating Teams and Excel, and more.

If the initial troubleshooting method does not resolve the issue, try the following solution.

Method 1: Delete Teams cache

Outdated Teams cache files may result in the "This app does not support the selected file type" error. To resolve this issue, follow these steps to delete the Teams cache:

Step 1. Press the Windows E key combination to open File Explorer.

Step 2. In the top address bar, type %appdata%\Microsoft\Teams and press Enter . Or you can navigate layer by layer to C:\Users\username\AppData\Roaming\Microsoft\Teams .

Step 3. Press the Ctrl A shortcut key to select all cached files, then right-click and select Delete .

After that, restart Teams and check if the error has disappeared.

Method 2: Unhide any Excel worksheets

Based on user experience, hidden Excel worksheets can be the cause of unsupported file types issues. Therefore, you need to unhide all worksheets.

Open the target Excel file, right-click any sheet and select Unhive . If the Unhide option is grayed out, it means there is no hidden worksheet in this Excel file, go to the next method.

Method 3: Disable hardware graphics acceleration

Windows hardware graphics acceleration helps accelerate graphics performance for a better experience. However, sometimes it causes "Teams or Excel does not support the selected file type" issue. You can disable hardware graphics acceleration by following these steps:

Step 1. In Excel, click File > Options .

Step 2. Go to the Advanced tab, scroll down and select Disable Hardware Graphic Acceleration under the "Show" section.

Step 3. Click OK to make the changes take effect.

Method 4: Use the "Set It as a Tab" function

Some users reported that they solved the issue by using the "Set It as Tab" feature in Teams. You can try it.

In Teams, go to the channel you want to have the file as a tab and click the existing Files tab. Then click the three-dot icon of the target file and select Set as tab from the context menu.

Important Recommendations

In addition to the "selected file type not supported" error, Excel will encounter some other problems, such as unexpected closing of Excel, Excel freezes when copying and pasting, etc. These problems usually lead to loss of Excel files.

To recover deleted or lost Excel files, you can use MiniTool Power Data Recovery . Not only does it perform well in Excel file recovery, but it is also effective in Word's recent document recovery, Outlook email recovery, other Office file recovery, deleted photos recovery, and more.

Download MiniTool Power Data Recovery for free and try it out.

Summarize

In summary, this article explains how to resolve the "This app does not support the selected file type" error in Teams and Excel.

If you encounter any other effective solutions, please leave a message in the comment section below to help more users. Thanks in advance!

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