File Extensions (#ext)

File Extensions in Excel
See Excel HELP for more extensions related to Excel and additional information. Help --> file formats --> converting --> File format converters supplied with Microsoft Excel

XLA - MS EXCEL add-in file written in VBA
XLB - MS EXCEL Toolbar file
XLC - Excel version 4 chart file
XLK - MS EXCEL backup file
XLL - MS EXCEL add-in file written in C or C++ (.DLL related)
XLM - MS EXCEL macro
XLS - Excel for Windows spreadsheet file
XLT - MS EXCEL template
XLW - MS EXCEL saved workspace file