| |
•
The extension consists of a period (.) and a three-letter
abbreviation that tells what software program created
the file or what format the file was saved in. |
| |
• For
example, a lesson plan created in Microsoft word could
be named: My Lesson Plan.doc |
| |
• By
adding the correct extension, a document can be recognized
more easily by both Macintosh and PC computers and
if the computer has the appropriate software, the document
can be opened. In addition, adding the correct extension
to documents can make them more easily opened when
sent as email attachments. |
| |
• Common
extensions |
| |
| |
.doc |
Microsoft
Word |
| |
.mov |
QuickTime
movie |
| |
.pdf |
Portable
Document Format (Adobe Acrobat) |
| |
.ppt |
Microsoft
Powerpoint |
| |
.rtf |
Rich
Text Format document |
| |
.stk |
Hyperstudio |
| |
.txt |
Text
only document |
| |
.xls |
Microsoft
Excel |
|
| |
• Other
extensions include those for graphics (.tif, .jpg,
.pct) and for sound (.aif, .wav, .mp3). |
