File Extensions (XL (All?))

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I know that xla is an add-in, xls is a spreadsheet, and xlt is a template. What is an xll? And for that matter, are there other extensions for Excel and what are they / do they mean? Thanx

Dennis

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(XL2000)
xla : an excel add-in file
xlb: an excel toolbar configuration file. The current toolbar configuration is stored in the Windows directory in a file named Excel9.xlb (the name may be different in a network environment)
xlc: an excel 4 chart file
xll: an excel link library filr; for example, the Analysis Toolpak add-in uses this type of file
xlm: an excel 4 macro file
xls: an excel workbook file
xlt: an excel template file
xlw: a workspace file that contains information about the windows and positions in a workspace

Other files used or recognized by Excel:
chm: a compiled HTML help file
hlp: a compiled help file (earlier help files)
dll: dynamic link library file
exe: an executable file (e.g. Excel.exe)
olb: an object type library file
txt: a plain ascii text file, readable from any text editor

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From Windows Explorer, Tools=>Options=>File Types on Excel 2000 / Windows 98SE

XLC	Microsoft Excel Chart
CSV	Microsoft Excel Comma Separated Values
DIF	Microsoft Excel Data Interchange
XLSHTML	Microsoft Excel HTML Document
XLTHTML	Microsoft Excel HTML Template
DQY	Microsoft Excel ODBC Query files
OQY	Microsoft Excel OLAP Query File
RQY	Microsoft Excel OLE DB Query files
SLK	Microsoft Excel SLK Data Import File
XLV	Microsoft Excel VBA Module
IQY	Microsoft Excel Web Query File

StuartR

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XLW file

Save your workspace (and time)

If you routinely need to work with the same set of Excel files, use a
saved workspace for quick access to them. When you open a saved workspace,
all the Excel files grouped in it are opened. To create your workspace,
open all the Excel files you want included in it. Then, select File/Save
Workspace. When the Save Workspace dialog box appears, enter a name in the
File Name text box and click Save. Excel creates an XLW file with the name
you specified. At this point you can close all your files. To open them
back up as a group, simply select File/Open and select the XLW file.

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Nice reminder!

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I have found one more. xlk. When you tell Excel to make a back up of your file, this is the extension that gets assigned.

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