Neha - * Beware of scammers posting fake support numbers here. Select Microsoft Office 365, click Change>Online Repair>Repair.In the Run box, type appwiz.cpl and click OK.Click Start, in the search box type Run.If the above didn’t help, please try online repair:.To ask whether you want to start in safe mode.

Check if Excel works normally in safe mode (press the control key immediately after clicking Excel icon, it should pop up a confirmation dialog.( Note : please remove any sensitive information from the screenshot such as email address or full name etc.). To get this screenshot, open any Office app such as Word or Excel on your system, clickįile> Account, capture the screenshot of all the information mentioned under

Please provide us with a screenshot of Office 365 Product Information.

If the issue is with Office apps only, please provide us with the following information:.

Please check other application such as Browser (Firefox or Chrome) and non-Office applications to confirm if the issue is with all the apps or just Office apps only.

If it does, please provide us with the following information: If it is Off, then re-open Excel app and check if it still opens Excel with black background. Start menu, type Contrast, from the search result, clickĬhange high contrast theme, check if High contrast option is

Just to confirm if it is Off, in Windows 10, in the search bar next to and since Excel ribbon is all color, I believe High Contrast setting is Off as well. As you’ve already confirmed that the Color Filters are Off.

Green gray and black background