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

Microsoft Excel is the industry leading spreadsheet application and data analysis tool. Explore free spreadsheet software tools with advanced features in Excel.

Quickly open any spreadsheet, print it out, or copy the text and values you need out of it - no Excel needed. Pin it to your Start menu to get instant access to your most-recently used spreadsheet.

Aug 19, 2025 · Specifies the Excel Binary File Format (.xls) Structure, which is the binary file format used by Microsoft Excel 97, Microsoft Excel 2000, Microsoft Excel 2002, and Microsoft Office Excel …

Feb 14, 2019 · The Excel Binary File Format (.xls) is a collection of records and structures that specify workbook content, which can include unstructured or semi-structured tables of numbers, text, or both …

Mar 19, 2012 · In general, .xlsx/.xlsm files are somewhat less likely to become corrupt, and can be smaller, but if you make regular backups and have plenty of disk space, there's no reason to spend …

Nov 30, 2025 · Compatibility Mode: Make sure that Excel is not running in Compatibility Mode, which can cause issues with opening files. If none of these steps resolve the issue, consider contacting …

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

With a user-friendly interface, you can easily open, view, edit, and save XLS files. The app supports various formatting options, including fonts, colors, and alignments.

Jul 19, 2023 · Features Create, Edit, Export Sheets from xlsx format Files More than 100 formulas, functions for calculation Auto generate chart, table AI Assistant: Auto summarization, formular …