If Email attachment does not open

1) Wrong file extension
Rename file and try again

• Text: doc, docx, rtf, odt, html, txt, xml, pdf
• Spreadsheet: xls, xlsx, ods
• Presentation: ppt, pptx, odp
• Image: jpg / jpeg, gif, png, bmp, tif / tiff, targa
• Audio: wav, mp3, ogg, flac
• Video: avi, mp4, flv

Why

• Save as Word document
• Filename: __________.doc
• File format: Word document (*.docx)
  

How correct file extension

• Save as Word 97-2003 document
• Filename: __________.doc
• File format: Word 97-2003 document (*.doc)
  

Software

• OpenOffice: odt, ods, odp
• Microsoft Office 2007: docx, xlsx, pptx
• Notepad or WordPad: html, txt, xml
• More file extensions: http://filext.com
• More software: http://www.theopendisc.com/education/

other language: http://translate.google.com

2) Corrupted file
Download and open file.

• http://www.openoffice.org
• Finnish language: http://fi.openoffice.org

3) Don't know what it is
Download and open file.

• Windows: xvi32 hex editor http://www.chmaas.handshake.de/delphi/freeware/xvi32/xvi32.htm
• Linux: ghex . After install it goes to menu Applications / Programming