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  1. File formats that are supported in Excel - Microsoft Support

    Lists the file formats that are supported in Excel. The topic also includes a list of unsupported file formats and some suggested workarounds.

  2. File Types in Excel: When to use XLSX, XLSM, XLSB, XLS etc.?

    Feb 12, 2017 · Excel provides 29 different file types when you save your Excel workbook. When you save an Excel workbook for the first time or use the “Save As” function, you are asked for a folder, …

  3. All About Excel Files (Types, Extensions, Open, Merge, Etc. )

    Jul 9, 2024 · What Are the Available File Types That Are Supported in Excel? Excel supports 3 file formats. Their names, extensions, and details are in separate lists below.

  4. File Formats in MS Excel - GeeksforGeeks

    Aug 12, 2025 · In this section, we have discussed all the file formats that are offered by Microsoft Excel. Here we will get the details about the extensions, Excel support, features and more.

  5. A Quick Guide To All Excel File Extensions & What They Mean

    Jul 26, 2020 · Some file extensions refer specifically to the type of file, such as whether it’s an Excel template or an Excel file that contains a macro. If you understand all of the Excel file extensions, …

  6. Excel File Formats (Workbook Extensions)

    Excel Macro-Enabled Workbook (.xlsm) 3. Excel Binary Workbook (.xlsb) 4. Excel 97-2003 Workbook (.xls) 5. CSV UTF-8 (Comma Delimited) (.csv) 6. XML Data (.xml) 7. Single File Web Page (.mht, …

  7. Excel Extensions - Types Of File Formats, How to Show/Hide?

    Extensions indicate the Excel file type and the format of the data it contains. They help users choose which application to open and run the specific file correctly. For example, the below image shows an …

  8. The Ultimate Guide to Excel File Formats: Extensions and Uses

    In this article we are going to make a A comprehensive and practical review of all the formats supported by Excel and what role each one plays: from the classic .xlsx and .xls to lesser-known ones like …

  9. XLS vs. XLSX Files - What's the Difference? - Spreadsheet Planet

    When working with Microsoft Excel files, it’s important to understand the differences between the two primary file formats: XLS and XLSX. In this section, we’ll compare these formats in terms of …

  10. How to Check Excel File Extension (2 Easy Methods)

    3 days ago · Learn how to check an Excel file extension using File Explorer or directly within Excel to quickly identify formats like XLS, XLSX, and more.