Opening Files on a Mac
Mac users must use proper file extensions when uploading files to Blackboard courses.File extensions are the letters that appear after the period near the end of a document name that indicate the file's format, e.g. a Microsoft Word document called "History_Lesson" will have a file name of "History_Lesson.doc", where ".doc" indicates it is a Word document. Failing to provide a file extension can cause a file to appear as gibberish when downloaded from Blackboard.
Note: Some operating systems do not show file extensions unless you select the show extensions option.
A Partial List of File Extentions
| File Type | Extension |
|---|---|
|
Adobe Acrobat Portable Document Format (PDF) |
|
|
Adobe Scalable Vector Graphics file (SVG) |
.svg |
| Apple QuickTime movie |
.mov |
| Graphics Interchange Format file (GIF graphic) |
.gif |
| Joint Photographic Expert Group file (JPEG graphic) |
.jpg |
| Macromedia Flash movie |
.swf |
| Macromedia Streamable Shockwave Audio file |
.swa |
| Microsoft Access database |
.mdb |
| Microsoft Excel workbook |
.xls |
| Microsoft Excel template |
.xlt |
| Microsoft PowerPoint presentation |
.ppt |
| Microsoft PowerPoint template |
.pot |
| Microsoft Word document | .doc |
| Microsoft Word template |
.dot |
| Moving Pictures Expert Group (MPEG) movie |
.mpg |
| Moving Pictures Expert Group 3 (MP3) file |
.mp3 |
| Plain text document |
.txt |
| PostScript file |
.ps |
| Real Audio media file |
.ram |
| Rich Text Format (RTF) document |
.rtf |
| Tagged Image File Format file (TIFF graphic) |
.tif |
| Wave sound file |
.wav |
| Web page (HTML) |
.html |
| Windows Media file |
.wma |
| Zip-compressed archive | .zip |
Last modified August 20, 2007 8:46:51 AM EDT