.rar
.png is the default extension of an Ms-paint file
The default file extension for notepad is .txt. However, you can designate notepad as the primary application for any extension.
"Docx" is the default file extension for Word 2013 edition.
"Docx" is the default file extension for Word 2013 edition.
the default extension of Telugu word file is addition subtraction division multiplacation
When files containing large amounts of information are compressed or zipped, they are moved and forced into a smaller space to conserve memory and protect the file(s).
The files ending in .DOC are the designation for Word 2003 (and earlier). Files ending in .DOCX are the newer version files. The .DOCX files are a different format of file altogether. The .DOCX file is actually a ZIPped archive, with files inside of it based on XML language. If you want, you can rename a .DOCX (or .XLSX) file to have a .ZIP extension, then double click it and it will open up the ZIP archive and show the other files.
.ppt is the file extension for power point files
.docx, all Office 2007 have a "x" on the end.
A compiled Help File in Windows will have the extension .chp
The default file ext for Excel 2010 default install is .xlsx as it was in 2007. 2003 was the last version with a different extension, which was .xls for workbooks.Te default file ext may be changed by going into File-> Options -> Save -> Save in this format.If there is a group policy in place, Excel will inherit the default file extension specified.
There is list of programs that support DO file extension http://www.howopen.org/en/extensions/web-files/do