Or, you receive the following message when you double-click a file that is stored in OneDrive to view the file by using Office for the web:
File Download
Do you want to open or save this file?
This issue occurs because the operation that you requested in Office for the web or Office Web Apps does not support the file format of the file.
To view or edit the file in Office for the web or Office Web Apps, open the file in Microsoft Office Excel 2010, in Microsoft Office PowerPoint 2010, or in Microsoft Office Word 2010, and then save the file by using one of the supported formats. The following table shows the recommended file formats for Office for the web and Office Web Apps.
Excel for the web
Excel Web App
Excel Workbook (*.xlsx)
Excel Workbook Binary (*.xlsb)
Microsoft Word for the web
Word Web App
Word Document (*.docx)
Microsoft PowerPoint for the web
PowerPoint Web App
PowerPoint Presentation (*.pptx)
To view or edit in Office for the web, use the following table to check which file formats are supported.
View in Word for the web or Word Web App
Edit in Word for the web or Word Web App
Yes, Word for the web or Word Web App converts the .doc file to a .docx file to allow you to edit the file but you must save the file in as a .docx file to save your changes.
Yes, but macros do not work.
Templates (.dotm, .dotx)
No, you must open the template in the client.
Other file formats (.dot, .mht, .mhtml, htm, .html, .odt, .rtf, .txt, .xml, .wps, .wpd)
View in Excel for the web or Excel Web App
Edit in Excel for the web or Excel Web App
Yes on OneDrive
Not on SharePoint
Yes on OneDrive.
Not on SharePoint.
Yes. However, you are prompted to create a copy of the file that has the macros removed when you save the changes that you have made.
Other file formats (.xltx, .xltm, .xlam, .xlm, .xla, .xlt, .xml, .xll, .xlw,ods, .prn, .txt, .csv, .mdb, .mde, .accdb, .accde, .dbc, .igy, .dqy, .rqy, .oqy, .cub, .uxdc, .dbf, .slk, .dif, .xlk, .bak, .xlb)
View in PowerPoint for the web or PowerPoint Web App
Edit in PowerPoint for the web or PowerPoint Web App
Open XML (.pptx, .ppsx)
Yes, PowerPoint for the web or PowerPoint Web App converts the .ppt or .pps file to a .pptx or .ppsx file to allow you to edit the file but you must save the file in as a .pptx or .ppsx file to save your changes.
Macro (.pptm, .potm, .ppam, .potx, .ppsm)
Other file formats (.pot, .htm, .html, .mht, .mhtml, .txt, .rtf, .wpd, .wps, .ppa, .odp, .thmx)