Nov 3, 2017 · Open your workbook that you want to convert the format. Click File > Save As. The Save As dialog will display, specify a folder to place the new format of the file, and then click Save as type drop down list to choose Excel 97-2003 Workbook. Click Save. Let …

Nov 18, 2020 · As we can view .xls workbook (Excel 97-2003 Workbook) in Excel online but can’t edit them. To edit the workbook online, one should convert to the newest file format i.e. xlsx. Now coming back to your question, based on your description, I tested on my end and uploaded a .xls workbook to OneDrive for business.

Mar 20, 2012 · Can somebody point me to a credible source of information explaining what are the real differences between a .xls and .xlsx file ? I have many .xls file. I began using Office v14 recently and wonder if it is useful to change them all to …

Aug 23, 2019 · If you want to convert .xls file to .xlsx file and you don’t have may .xls files, we’d give you some workarounds and hope that will help you: When you open older format files, you will see "Compatibility Mode" in the title bar after the file name. You can use the "convert" function. Click on the Office button, then Convert.

Feb 1, 2024 · Rename the file extension to match the format of the file, such as .xlsx or .xls: Right-click on the Excel file then go to properties > General tab > Rename the file extension. Repair your Excel file: Repair a corrupted workbook - Microsoft Support. Change Trust Center settings: 1) Open any Office program and click on "File" in the top left corner.

Jul 1, 2020 · Running Win 10 using Microsoft 365. If I don't have Excel open and try to open a .xls file it fails. Opens .xlsx OK Message "Sorry we couldn't find /e.xlsx. Is it possible it was moved, renamed or

Feb 17, 2022 · Due to the subject the xlsx files are saved (and treated) as Internet Explorer files (!!) and the ways to open them in Excel is either by choosing 'Open With' and select Excel or open Excel first and

Jan 14, 2025 · Excel cannot open the file _____ beacuse the file format or file extension is not valid. verify that the file has not been corrupted and that file extension matches the format of the file. This file can be open on all other computer. I have disabled all the protection view. I have clicked "open and repair"

Jun 7, 2024 · The file in .xlsx format does not open in Microsoft Excel but successfully in LibreOffice. Attached is a screenshot showing the different systems (Windows and LibraryOffice) where this occurs. Can you please provide a better solution for why this is happening and how I can open this file in the same format in Microsoft Excel? Windows . Library ...

Mar 18, 2018 · Browse to Files in the 97-2004 Format (xls) and choose. It should ask whether you want to convert files. And it may ask whether you want to backup the originals. If it doesn't, save with a slightly different name. _____ Disclaimer: