File Extensions-What are they?

The following is a list of some of the most popular "file extensions" you will see on your computer and or receive in an email...  File Extensions tell the computer the specific type of "file" something is...    Note if any file extension has an "x" at the end of it, it is an indication it was done in one of the Office 2007, 2010, 2013 programs... (ie.e docx; xlsx, pptx)
Extension	Example File Type
zip	Zip archive
pdf	PDF Document
mp3	MP3 Audio File
jpg	JPEG Image
exe	Executable file
wmv	Windows Media Video
doc	Microsoft Word Document
ppt	Microsoft PowerPoint Presentation
mpg	MPEG-1 Video
tif	Tagged Image File Format
wav	Waveform Audio Format
mov	QuickTime
psd	Photoshop Document
wma	Windows Media Audio
xls	Microsoft Excel spreadsheet
mp4	MPEG-4 Part 14
txt	Plain text file
bmp	Windows bitmap
pps	PowerPoint Show
aif	Audio Interchange File
pub	Microsoft Publisher
gif	GIF (Graphics Interchange Format) Image
qbb	QuickBooks backup file
dat	Data
rm	RealMedia
mdb	Microsoft Access
htm	Hypertext Markup Language (HTML)
flv	Flash video
wpd	WordPerfect Document
rtf	Rich Text Format
jpeg	JPEG image
html	Hypertext Markup Language (HTML) document
pst	Microsoft Personal STorage
ttf	TrueType font
mswmm	Windows Movie Maker Project File
eml	E-mail message
bat	Batch file
wps	Text document; MS Works

How to convert older Office documents (97-2003) to Office 2007 Format

Office 2007 applications such as Word and Excel can open a spreadsheet or a document, in any of the older Office Word, Excel or other application software versions. When they open the older versions, they are opened in the Office 2007 Compatibility Mode (which you will see is noted in the title bar on the top of your screen) when you open the document.
If you want to use the new features available in your Office 2007 Software Application program on the “older document” you will first have to convert older Office documents to Office 2007 format.

The feature to covert older Office documents to Office 2007 format is very useful – one example s that now in Excel 2007 you can use 1.1 million rows – whereas the older versions of Excel only offered you sixty-five thousand rows.

Seriously though, converting to use the new features is quick and easy and worth the change. The method to convert older Office documents to Office 2007 format is the same for all applications, but we are using and example of a Word document of previous version. Again, when you open a Word or Excel document of an older version, you will see [Compatibility Mode] as part of the title on the Title Bar…So, to convert older Office documents to Office 2007 format:

• Open the Word document, which you want to convert into Word 2007 format
• Click on the Microsoft Office button on the top left
• Click on Convert on the left hand side of the menu
• Click on the OK button on the Microsoft Word Office dialog box which appears
• By clicking OK, your document is automatically converted to the Word 2007 format
• Now notice that [Compatibility Mode] is no longer part of the title bar