XLSMHTML - Microsoft Excel MIME HTML Spreadsheet

What is an XLTHTML file?

What is XLS file format? Learn from File Format Experts!

MAR - Mariner Calc Spreadsheet File Format

XAR - Microsoft Excel Auto-Recovery File Format

NUMBERS - Apple iWork Numbers spreadsheet

NUMBERS-TEF - Files created by using Apple iWork Numbers spreadsheet for iCloud

SXC File Format

FODS - OpenDocument XML Spreadsheet File Format

XLA - Excel Add-In File

What is Lotus 123 file format? Learn from File Format Experts!

NB - Mathematica Notebook File Format

OTS - OpenDocument Spreadsheet Template File Format

XLR - Microsoft Works Spreadsheet File Format

What is XLS file format? Learn from File Format Experts!

What is an _XLSX file?

CSV File Format

What is a DIF file?

What is a ODS file?

What is a TSV file?

XLAM File Format

What is an XLM file?

What is an XLSB file?

What is an XLSM file?

What is an XLSX file?

What is an XLT file?

What is an XLTM file?

What is an XLTX file?