. xlsx is the default extension of file in excel 2010.
. xlsx is the default extension of file in excel 2010.
what is default extension of file in excel 2010?
. xlsx
bullet::::- .xlsx – excel workbook









































bullet::::- .xlsm – excel macro-enabled workbook; same as xlsx but may contain macros and scripts









































bullet::::- .xltx – excel template









































bullet::::- .xltm – excel macro-enabled template; same as xltx but may contain macros and scripts









































bullet::::- other formats: microsoft excel uses dedicated file format that are not part of ooxml and use the following extensions:









































bullet::::- .xlsb – excel binary worksheet (biff12)









































bullet::::- .xla – excel add-in or macro









































bullet::::- .xlam – excel add-in









































bullet::::- .xll – excel xll add-in; a form of dll-based add-in









































bullet::::- .xlw – excel work space; previously known as "workbook"
list of microsoft office filename extensions
from its first version excel supported end user programming of macros (automation of repetitive tasks) and user defined functions (extension of excel's built-in function library). in early versions of excel these programs were written in a macro language whose statements had formula syntax and resided in the cells of special purpose macro sheets (stored with file extension .xlm in windows.) xlm was the default macro language for excel through excel 4.0. beginning with version 5.0 excel recorded macros in vba by default but with version 5.0 xlm recording was still allowed as an option. after version 5.0 that option was discontinued. all versions of excel, including excel 2010 are capable of running an xlm macro, though microsoft discourages their use.
microsoft excel