Extensions, or add-ons, are simple tools that customize your browser experience and offer you more control. Here's how to add, turn off, and remove them in Microsoft Edge .

Click File > Open. Click the location and folder that contains the corrupted workbook. In the Open dialog box, select the corrupted workbook. Click the arrow next to the Open button, and then …

Allows you to access favorites, passwords, and form fill data from the profile used to open the InPrivate window. Allows extensions you've given permission to run while browsing InPrivate.

If you get a message that says, "PowerPoint could not open the file" or "No text converter", you probably have a file-corruption problem. See Open a document after a file corruption for the …

Open .eml, .msg, and .oft files in new Outlook Applies To You can use drag and drop to open email messages saved with the extension .eml, .msg, .oft in new Outlook for Windows. Note: …

For example, XML schemas are active when the document that refers to them is open. Another example is the COM add-in: if a COM add-in is selected, the add-in is active.

To open a file that was created in another file format, either in an earlier version of Excel or in another program, click File > Open. If you open an Excel 97-2003 workbook, it automatically …

You can rename the file (or request that the sender rename the file) to use an extension that Outlook doesn't block. For example, you can rename file.exe to file.docx.

To open a project created in another program: Select the file format that you want in the dropdown list to the right of the File name box, and then double-click the file name in the folder list.

File formats support by Microsoft Project. Use this information to learn how to open and view previous versions of projects.