.TMP File Extension

2 file types use the .tmp file extension.

Temporary File

Developer N/A
3.8  |  1036 Votes

What is a TMP file?

A TMP file is a temporary backup, cache, or other data file created automatically by a software program. It is sometimes created as an invisible file and is often deleted when the program is closed. TMP files may also be created to contain information temporarily while a new file is being generated.

More Information

Often TMP files are comprised of raw data that is used as an intermediary step in the process of converting the content from one format to another. Some programs that create and use TMP files include Microsoft Word and Apple Safari.

NOTE: TMP files are often called "temp files."

How to open a TMP file

Most TMP files are not meant to be opened. While you can open a TMP file in Microsoft Notepad (Windows) or another text editor, the file may not be human-readable. Typically, TMP files are deleted after either:

  • The application that created the file finishes using the file
  • You close the application that created the file
  • You shut down your PC
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Programs that open TMP files

Included with OS

Finale Temporary File

Developer MakeMusic
3.5  |  162 Votes

A TMP file may also be a temporary data file created by MakeMusic Finale, a music notation program. It contains cached data for the score you are currently working on. Typically, Finale deletes TMP files after you close the program.

More Information

Composers use Finale to compose, edit, and play back musical scores. While a composer is working on a score (.MUSX file), Finale creates one or more TMP files that contain temporary data related to that score. When you close Finale, the program is supposed to delete TMP files related to the score you had open.

However, Finale is infamous for handling TMP files incorrectly. For example, Finale sometimes fails to keep its TMP files open, allowing your operating system to delete them while you are editing the related score. This can prevent you from being able to save the score. Finale also sometimes fails to delete TMP files when it should. You can safely manually delete any leftover Finale TMP files.

Where are Finale TMP files stored?

You can see where Finale is storing TMP files by opening the program and selecting Preferences → Folders. The location listed in the Temporary Files field is where Finale is storing TMP files. You can also use this setting to manually specify where Finale should save TMP files. (Some users recommend creating a new directory in which to save Finale TMP files to avoid the accidental deletion error described above.)

How to open a TMP file

Finale TMP files are not meant to be and cannot be opened.

Programs that open or reference TMP files


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