Editing Microsoft Excel (section)

==== Old file extensions ====
{|class="wikitable"
|-
!Format
!Extension
!Description
|-
|[[Spreadsheet]]
|{{code|.xls}}
|Main spreadsheet format which holds data in worksheets, charts, and macros
|-
|Add-in ([[Visual Basic for Applications|VBA]])
|{{code|.xla}}
|Adds custom functionality; written in [[Visual Basic for Applications|VBA]]
|-
|Toolbar
|{{code|.xlb}}
|The file extension where Microsoft Excel custom toolbar settings are stored.
|-
|Chart
|{{code|.xlc}}
|A 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
|{{code|.xld}}
|Used in older versions of Excel.
|-
|Archive
|{{code|.xlk}}
|A backup of an Excel Spreadsheet
|-
|Add-in (DLL)
|{{code|.xll}}
|Adds custom functionality; written in [[C++]]/[[C (programming language)|C]], [[Fortran]], etc. and compiled into a special [[dynamic-link library]]
|-
|Macro
|{{code|.xlm}}
|A macro is created by the user or pre-installed with Excel.
|-
|Template
|<code>[[Xlt (file format)|.xlt]]</code> <!-- using {{code}} either breaks the link or makes it invisible -->
|A pre-formatted spreadsheet created by the user or by Microsoft Excel.
|-
|Module
|{{code|.xlv}}
|A module is written in VBA (Visual Basic for Applications) for Microsoft Excel
|-
|Library
|{{code|.DLL}}
|Code written in VBA may access functions in a DLL, typically this is used to access the Windows API
|-
|Workspace
|{{code|.xlw}}
|Arrangement of the windows of multiple Workbooks
|}