Show file extension when saving excel
https://www.online-tech-tips.com/ms-office-tips/a-guide-to-all-excel-file-extensions-what-they-mean/
You can see all of the file extensions in Excel by selecting File from the menu, select Save As, and then select the file type dropdown under the file name field. As you can see, each of the file types have a descriptive name that helps with understanding what the file extension is for. .xlsb – Excel binary worksheet .xla – Excel add-in that can contain macros .xlam – Excel macro-enabled add-in .xll – Excel XLL add-in; a form of DLL-based add-in .xlw – Excel work space; previously known as "workbook" .xlsx – Excel workbook .xlsm – Excel macro-enabled workbook .xls – Excel workbook (legacy format) .xlt – Excel template .xltm – Excel macro-enabled template .xltx – Excel template .xml – Excel workbook in XML format .csv – Excel comma-separated values file .txt – Excel tab-delimited text file .prn – Excel space-delimited text file .xlsb – Excel binary worksheet (BIFF12) .xla – Excel add-in that can contain macros .xlam – Excel macro-enabled add-in
.xlsb – Excel binary worksheet
.xla – Excel add-in that can contain macros
.xlam – Excel macro-enabled add-in
.xll – Excel XLL add-in; a form of DLL-based add-in
.xlw – Excel work space; previously known as "workbook"
.xlsx – Excel workbook
.xlsm – Excel macro-enabled workbook
.xls – Excel workbook (legacy format)
.xlt – Excel template
.xltm – Excel macro-enabled template
.xltx – Excel template
.xml – Excel workbook in XML format
.csv – Excel comma-separated values file
.txt – Excel tab-delimited text file
.prn – Excel space-delimited text file
.xlsb – Excel binary worksheet (BIFF12)
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