What is the extension added to word file?

Answer 1

Excel 2003:

.xls = Workbook

.xla = VBA Add-in

.xlb = Toolbar (where custom toolbar settings are stored)

.xlc = Chart

.xld = Dialog (from older versions of Excel)

.xlk = Archive (Excel spreadsheet backup)

.xll = DLL Add-in

.xlm = Macro

.xlt = Template

.xlv = VBA Module

.xlw = Workspace (collection of multiple Workbooks)

Excel 2007:

.xlsx = Workbook (XML format)

.xlsm = Macro-enabled Workbook

.xlsb = Excel Binary Workbook (instead of XML format)

.xltm = Macre-enabled Template

.xlam = Add-in (XML format)

http://wiki.answers.com/What_is_the_file_extension_that_indicates_an_excel_file#ixzz16E1eq6Mr

Answer 2

FormatExtensionDescriptionSpreadsheet.xlsMain spreadsheet format which holds data in worksheets, charts, and macrosAdd-in (VBA).xlaAdds custom functionality; written in VBAToolbar.xlbThe file extension where Microsoft Excel custom toolbar settings are stored.Chart.xlcA chart created with data from a Microsoft Excel spreadsheet that only saves the chart. To save the chart and spreadsheet save as .XLS. XLC is not supported in Excel 2007 or in any newer versions of Excel.Dialog.xldUsed in older versions of Excel.Archive.xlkA backup of an Excel SpreadsheetAdd-in (DLL).xllAdds custom functionality; written in C++/C, Visual Basic, Fortran, etc. and compiled in to a special dynamic-link libraryMacro.xlmA macro is created by the user or pre-installed with Excel.Template.xltA pre-formatted spreadsheet created by the user or by Microsoft Excel.Module.xlvA module is written in VBA (Visual Basic for Applications) for Microsoft ExcelLibrary.DLLCode written in VBA may access functions in a DLL, typically this is used to access the Windows APIWorkspace.xlwArrangement of the windows of multiple Workbooks

Answer 3

In older Word files (before 2007), it is common to see .doc

In newer Word file (2007 and later), it is common to see .docx

Answer 4

.xls is the normal file extension for a spreadsheet

.xlt for a template

Answer 5

There are 2 of them: ppt and pptx.