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A file extension is the group of letters that appear after the last period in a file name. File extensions are usually 2 to 4 characters long, although they can be of any length. Excel uses a handful of standard extensions to disambiguate certain kinds of spreadsheet files.The information in this article applies to Excel 2019, Excel 2016, Excel 2013, Excel 2010, Excel 2007, Excel Online, and Excel for Mac.The current default file extension for an Excel file is XLSX. Prior to Excel 2007, the default file extension was XLS. The main difference between the two is that XLSX is an XML-based open file format and XLS is a proprietary Microsoft format. But, the newer versions of Excel save and open XLS files for the sake of compatibility with earlier versions of the program.Determine if a file contains macros before you open it. Macros contain code that could damage files and compromise computer security if they come from untrusted sources. Excel files containing VBA and XLM macros use the XLSM extension.XML stands for extensible markup language. XML is related to HTML, the extension used for web pages. Advantages of this file format include:Smaller file sizes for storage and transfer.Better recovery of information from damaged files.Easier detection of files containing macros. If an Excel file has either an XLTX or an XLTM extension, it is saved as a template file. Template files are used as starter files for new workbooks. Templates contain saved settings such as the default number of sheets per workbook, formatting, formulas, graphics, and custom toolbars. The difference between the two extensions is that the XLTM format can store VBA and XML macro code. Macintosh computers do not rely on file extensions to determine which program to use when opening a file. However, for the sake of compatibility with the Windows version of the program, Excel for Mac uses the XLSX file extension.Excel files created in one operating system can be opened the other. One exception to this is Excel 2008 for the Mac, which does not support VBA macros. As a result, it cannot open XLMX or XMLT files created by Windows or later Mac versions that support VBA macros. To change an Excel format (and its extension), follow these steps:Open the workbook and select File > Save As. In Excel 2019, select Save a Copy instead.In the dialog box, accept the suggested file name or type a new name for the workbook.In the Save as type or File Format list, choose the format for the resulting file. Select Save to save the file in the new format and return to the current worksheet.If a file is saved in a format that does not support all the features of the current format, such as formatting or formulas, an alert message box appears prompting you to continue or to cancel.Thanks for letting us know!Get the Latest Tech News Delivered Every DaySubscribeTell us why! Excel consists of different extensions in which we can save are data. These extensions include different types of file formats. Sometimes excel fails to save data of one format to overcome this problem we can same our file in different format.Most common extensions that are used normally is .xlsx. This format is used to store simple information. Another extension is XLS. VBA code is feed by using XLSM extension. There are also some extensions that are used to delimits the comma containing data is CVS. For compressing and opening stored files XLB extension is used.We have only mentioned a few numbers of extensions, the updated version of excel comprises of various extensions.In this article, we will highlight the steps of changing extensions which are compatible for20162019 versions.How to change excel file extensionsThe steps to change excel file extensions are very easy. This feature is introduced to enable the users to store data in distinctive format. When a file does not support the feature of extension, we should change the extension. We can get awareness of such cases after the display of alert box.This method works for 20162019 versions. The steps given below will allow the users to change the extension of file by following these simple tips.First, we will open the workbook for which we want to change the extension.Then we will go to file tab and we will the option of save as and we will open the dialog boxAfter that we will select where we want to save the file then we will select the extension in which we want to save file. The result will be storing of data in desired format.How to know the extension of saved excel fileThe above-mentioned method focuses on changing the extension of unsaved file. Some of the saved files may lose their data if saved in inappropriate extension. To prevent such circumstances there is another method for changing the extension of stored data.This method works with 20162019 version. Following are the easy steps to change the format of saved excel files,First, we will select the file for which we want to change the format.Then we will click righto open a list of options.Then we will click on the option of properties.After that we will select the option of type of file.In this way we will able to check the extension of saved file.Advantages of using extensions There are many advantages of saving files in appropriate extension.The extensions require less time to upload and store data.They are capable of storing a large amount of information.They are very useful to secure the data and keep it safe from viruses and malicious macros.They also occupy less space which creates more space for the storage of more data.Some extensions acquire some functions and the other acquire other function. Different type of data needs to be store in accordance to different functions. So, changing of extensions of such files must be performed.Did you learn about how to change the extension of excel files using different methods? You can follow WPS Academy to learn more features of Word Document, Excel Spreadsheets, and PowerPoint Slides.You can also download WPS Office to edit the word documents, excel, and PowerPoint for free of cost. Download now! And get an easy and enjoyable working experience.

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