File Extension Database

Open 9 File

Every day we handle a variety of file extensions, whether consciously or unconsciously. Here are nine frequently encountered file extensions and their various formats and ways to open and use them:

.doc and .docx

The .doc and .docx are file extensions for the Microsoft Word document files. Find more about both here. To open them, you need Microsoft Word program installed on your computer. If you don�t have it, you can use various online converters or even Google Docs.


The .xlsx file is an Excel spreadsheet file extension, developed by Microsoft. To open this type of file, a spreadsheet handling program like Microsoft Excel or Google Sheets is required. If you want to learn more, please, visit Microsoft's official website.

.ppt and .pptx

.ppt and .pptx files are PowerPoint presentation files. You can open them using Microsoft PowerPoint, or Google Slides if you do not have PowerPoint. More info in here.


.txt file is a standard text document that contains unformatted text. It is recognized by any text editing or word processing program. More on wikipedia.


.mp3 is a common audio format. It can be opened with a wide variety of software, including VLC, iTunes, Windows Media Player, and even through web browsers like Chrome and Firefox. Visit wikipedia to learn more.


.mp4 is one of the most popular video formats, which can be played on numerous platforms, like your computer�s default media player, VLC, mobile devices, and so on. More information can be found on wikipedia.


.jpg is a file extension for a graphics file. Microsoft Windows Photos, Microsoft Paint or Adobe Photoshop can be used to open .jpg files. Learn more about this format here.


.zip files are arcives where one or multiple files can be kept. To open them, you will need programs like WinRar, WinZip or 7-Zip. To learn more, please visit wikipedia.

9 File Important Information

To wrap up, the ability to recognize file extensions and understand what programs can open those files is critical for day-to-day computer use. Knowing the basics of popular file extensions can enhance your effectiveness in handling digital tasks. It�s also important to note that certain file extensions require specific software, which may incur extra cost. Always ensure you have the appropriate software installed to open the files you are working with.

How Can I Open 9 File on Windows

How Can I Open 9 File on Mac OS

How Can I Open 9 File on Android

If you downloaded a 9 file on Android device you can open it by following steps below:

How to Open 9 File on iPhone or iPad

To open 9 File on iOS device follow steps below:

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9 file article translations

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