
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.
Save a workbook in another file format - Microsoft Support
Lists file formats (file types) that are supported in Excel, their extensions, and how to save workbooks to a different format or the current XML-based format (.xlsx).
Change the default file format for saving workbooks
In Microsoft Excel, workbooks are saved as Excel Workbooks (.xlsx) by default. You can change the default file format to any other file format that is supported in Excel.
File formats supported in Excel for Mac - Microsoft Support
See a list of supported file formats and descriptions for Excel for Mac workbooks.
Repair a corrupted workbook - Microsoft Support
Recover a corrupted workbook manually when Excel can't start File Recovery mode automatically and learn about saving backup and recovery files to prevent losing your work.
Excel formatting and features that are not transferred to other file ...
The .xlsx workbook format preserves all worksheet and chart data, formatting, and other features available in earlier Excel versions, and the Macro-Enabled Workbook format (.xlsm) preserves …
Use Excel with earlier versions of Excel - Microsoft Support
When you work in Compatibility Mode or want to save a workbook to the Excel 97-2003 (.xls) file format, the Compatibility Checker can help you identify issues that may cause a significant loss of …
Restore a previous version of an Excel file - Microsoft Support
How to restore an Excel file to an older version when the file can no longer be opened. There are scenarios in which files become corrupted and can't be opens in Excel anymore.
Learn about file formats - Microsoft Support
The Open XML format (.docx/.xlsx/.pptx) is the default format in all supported versions of Microsoft Office and, unless you have a specific reason to use a different format, it's the format we recommend …
Import or export text (.txt or .csv) files - Microsoft Support
There are two ways to import data from a text file with Excel: you can open it in Excel, or you can import it as an external data range. To export data from Excel to a text file, use the Save As command and …