Restore the file by saving changes, replacing the modified files, and renaming the extension back to `.xlsx` to regain full access in Excel. 1: Verify the File is Protected ...

OpenAI is reportedly developing ChatGPT to support .xlsx and .pptx file formats, expected to enable native editing and ...

Microsoft Excel: You Are Attempting to Save a File Type That Is Blocked by Your Registry Policy. ... Microsoft Excel files -- and other formats that Micr. Chron Logo Hearst Newspapers Logo.

It also enhances the readability of file listings by hiding known file extensions (such as .xlsx for Excel files or .docx for Word files) so that it’s less confusing for you to find what you ...

DAT files are files with an extension that isn't associated with a specific application or program and can be almost any type of file including video, media or text. Gaining access to the DAT ...