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1. #HOW TO MASS RENAME FILES ON MAC HOW TO#
2. #HOW TO MASS RENAME FILES ON MAC MAC OS X#
3. #HOW TO MASS RENAME FILES ON MAC PDF#
4. #HOW TO MASS RENAME FILES ON MAC ARCHIVE#

Secondly, you can falsify the true extension of a file in order to encrypt and protect it from unauthorized access. An extension can contain letters or numbers, but it cannot contain control characters, periods, slashes, bars, question marks, colons or asterisks. An extension can be anywhere from one to 253 characters long, but convention limits its length to three or four characters. A file extension is generally a three- or four-letter acronym or abbreviation. Highlighted below are the reasons why file extensions are important.įirst off, file extensions give us the knowledge of the format of a file. For example, the doc extension tells your computer that the file is a Microsoft Word file. For example, in lemmy.doc the filename is lemmy and the extension is doc.Įxtensions are important because they tell your computer what icon to use for the file, and what application can open the file. The extension is a three- or four-letter abbreviation that signifies the file type. Generally, most files names have two parts the file’s name, then a period(.

#HOW TO MASS RENAME FILES ON MAC HOW TO#

Read Also: How To Extract / Decompress A Compressed Files Why is the knowledge of File Extensions Important?

#HOW TO MASS RENAME FILES ON MAC ARCHIVE#

Otherwise opened by disk creation software or certain archive programs The executable script opened by a browserĮxecutable file opened by browser plug-in or Java playerĬontainer file for contents of an optical disk Opened by native Windows function or archive software such as 7Zip Should be left alone.įile that actually runs software (also type of ZIP) Used by software in a variety of functions. Opened by a browser or Adobe Flash player Opened by Quicktime or multimedia software Opened by Windows Media Player or multimedia software Viewed in a browser, code edited in text editor or

#HOW TO MASS RENAME FILES ON MAC PDF#

Opened by default browser or PDF software Opened by Notepad or text editor or Word, etc. Opened by or Microsoft Powerpoint or alternative software Opened by or Microsoft Excel or alternative spreadsheet software Opened by or Microsoft Word or alternative office software Opened by default browser or by a graphics program The important thing to remember is the extension is the last period and the characters that follow it This one is a bit tricky because there are two periods in this file. The extension is the period followed by the remaining characters. Chart Showing Examples of File Extensions If there is no period in a file, then it does not have an extension. Note: When trying to determine a file’s extension it is important to remember that the extension is simply the last period in a file and the characters that follow it. As you can see, the actual extension name gives clues as to the type of file it is. gz, which represent text files, mp3 files, jpeg image files, and files compressed with the gzip program. Some examples of file extensions include. For the most part, file extensions consist of three characters, which are typically letters or digits, that represent the type of file it is. There are no particular rules regarding how an extension should be formatted other than it must begin with a period and have at least one character after it. This extension allows the operating system to know what type of file it is and what program to run when you double-click on it. For example, the file extension.txt has an extension of. Rename a file extension on MacOS High SierraĪ file extension, or file name extension, is the letters immediately shown after the last period in a file name.

#HOW TO MASS RENAME FILES ON MAC MAC OS X#