The X
extension name file type Classification
123 Lotus 1-2-3 Spreadsheet Spreadsheet file
12M Lotus 1-2-3 SmartMaster File Spreadsheet file
AST Ability Spreadsheet Template Spreadsheet file
AWS Ability Spreadsheet File Spreadsheet file
BKS Microsoft Works Spreadsheet Backup File Spreadsheet file
CELL Thinkfree Office NEO Cell Workbook Spreadsheet file
DEF SmartWare II Data File Spreadsheet file
DEX Excel Spreadsheet Spreadsheet file
DFG Data Flask Grid File Spreadsheet file
DIS Oracle Discoverer Workbook Spreadsheet file
EDX Edraw XML FIle Spreadsheet file
EDXZ Edraw Compressed XML FIle Spreadsheet file
ESS EasySpreadsheet Spreadsheet Spreadsheet file
FCS First Choice Spreadsheet Spreadsheet file
FM FileMaker Database Spreadsheet file
FODS OpenDocument Flat XML Spreadsheet Spreadsheet file
FP FileMaker Pro Spreadsheet Spreadsheet file
GNM Gnumeric Spreadsheet Spreadsheet file
GNUMERIC Gnumeric Spreadsheet Spreadsheet file
GSHEET Google Drive Spreadsheet Link File Spreadsheet file
HCDT Thinkfree Office NEO Cell Template Spreadsheet file
IMP Improv Spreadsheet Spreadsheet file
MAR Mariner Calc Spreadsheet Spreadsheet file
NB Mathematica Notebook Spreadsheet file
NCSS NCSS Dataset File Spreadsheet file
NMBTEMPLATE Numbers Spreadsheet Template Spreadsheet file
NUMBERS Numbers Spreadsheet File Spreadsheet file
NUMBERS-TEF Numbers iCloud Document Spreadsheet file
ODS OpenDocument Spreadsheet Spreadsheet file
OGW Origin Workbook File Spreadsheet file
OGWU Origin Unicode Workbook File Spreadsheet file
OTS OpenDocument Spreadsheet Template Spreadsheet file
PMD PlanMaker Spreadsheet Spreadsheet file
PMDX PlanMaker Spreadsheet Spreadsheet file
PMV PlanMaker Spreadsheet Template Spreadsheet file
PMVX PlanMaker Spreadsheet Template Spreadsheet file
QPW Quattro Pro Spreadsheet Spreadsheet file
RDF Report Definition File Spreadsheet file
SDC Apache OpenOffice Calc Spreadsheet Spreadsheet file
STC StarOffice Calc Spreadsheet Template Spreadsheet file
SXC StarOffice Calc Spreadsheet Spreadsheet file
TMV TimeMap Visual Spreadsheet file
TMVT TimeMap Template Spreadsheet file
UOS Uniform Office Spreadsheet Spreadsheet file
WKI Lotus 2 Worksheet Spreadsheet file
WKQ Quattro Pro for DOS Spreadsheet File Spreadsheet file
WKS Lotus 1-2-3 Spreadsheet Spreadsheet file
WKS Works Spreadsheet Spreadsheet file
WKU Lotus 1-2-3 Spreadsheet Spreadsheet file
WQ1 Quattro Pro for DOS Spreadsheet File Spreadsheet file