Need to alter the file extension to access it with another software? Simply renaming it in Finder or File Explorer won't suffice. You'll have to change the format while saving it from a specific program. But fret not! This Mytour guide will walk you through adjusting a file's extension by selecting a different format. We'll also guide you on revealing hidden file extensions in Windows and macOS, ensuring the extensions are always in sight.
Access the file as usual and opt for 'Save As' from the File tab. Determine the location for the saved file, and utilize the 'Save as type' dropdown to adjust the file extension. After that, click 'Save'—you'll locate the file in your chosen destination.
ProceduresAdjusting a File Extension in Virtually Any Software


Access the File tab and select Save As.

Select a destination to save the file.

Assign a name to the file.

In the Save As window, locate a dropdown menu titled Save As Type or Format.

Select a different file format from the dropdown menu.

Press the 'Save As' button. The original file remains open in the software.

Locate the newly saved file in your chosen directory.
Revealing File Extensions on Windows


Navigate to Appearance and Personalization. This can be found within the Control Panel.
- For Windows 8, on the ribbon, choose Options.

Select Folder Options.

Go to the 'View' tab within the Folder Options window.

Show file extensions. In the Advanced settings, scroll to find Hide extensions for known file types and uncheck the box.

Click Apply, followed by OK.

Access the Windows Explorer to view file extensions.
Displaying File Extensions on Mac OS X

Choose a Finder window or initiate a new one. You can also click on the Desktop to open Finder.

Go to the Finder menu, then select Preferences.

Select 'Advanced' within the Finder Preferences window.

Mark the box for Show all filename extensions.

Exit the Finder Preferences window.

Launch a new Finder window. File extensions will now be visible.
Revealing File Extensions on Windows 8

Launch Windows Explorer.

Go to the View tab.

Tick the File name extensions box in the View/Hide section.

Check the file extensions' location. Upon opening a new
Windows Explorer window, the extensions will be visible.
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