Information, tips and instructions

TMP File

TMP file extension is used to specify that information in the file is temporary. Temporary files could be created both by operating system and applications for multiple different purposes. But the main principle in temporary files is that information is only stored for a certain period of time and will be deleted when it is not needed.

Temporary files are typically located in C:\TMP or C:\TEMP folders in Windows operating system and in /tmp folder in Linux, Unix and OS X operating systems. But in certain cases, temporary files could be stored in other folders. For example, when you start editing a file in Microsoft Word application it will automatically create an auto-save file where it will place the most current version of your edits. If Microsoft Word or operating system crashes, or if power is lots to the computer your changes will still be available from the auto-save file. The auto-save file is kept until the time you request Microsoft Word to save a file on disk by either selecting Save command in the menu or pressing Ctrl-S. Once you start performing further edits to a file a new auto-save file will be created to preserve them in case of software or hardware failures.

Not all temporary files have TMP file extension. Technically, TMP is not a standardized file extension. It is just the most frequent file extension used for temporary files. But other file extensions like LOG, BAK, TEMP could be used to store temporary files.

Sometimes TMP files could be just sitting on disk and taking useful space. It is possible when application which created them fails to delete them due to a software bug or a system crash. In this case it is possible to delete these files manually without affecting system performance. There are many software packages which help with this task, but it also could be performed manually.