How to Fix Excel Opening Multiple Files and the .localized Error
Question details
Excel automatically opens multiple files at startup and displays an error stating it cannot access the .localized file.

- Product
- Microsoft Excel
- Device & OS
- macOS
- Scenario
- Launching Microsoft Excel after a system or software update.
- Observed behavior
- The application displays an access error for a hidden system file (.localized) and automatically opens approximately ten unexpected workbooks upon startup.
Before modifying your Excel startup preferences, close all currently open workbooks and ensure your Office application is fully updated to the latest version.
Clear the Startup Folder Preferences
Removing the designated startup folder stops Excel from automatically attempting to load all files stored in that specific directory.
When Excel is configured to open all files in a broad directory like your Documents folder, it will try to open every supported file, as well as hidden system files like '.localized', causing access errors and a cluttered workspace.
Launch Microsoft Excel. Click on 'Excel' in the top Apple menu bar and select 'Preferences' from the dropdown menu.
In the Preferences window, locate and click on the 'General' icon.
Find the field labeled 'At startup, open all files in'. If there is a folder path listed here (such as your Documents folder), select the text and delete it, or click the 'Clear' button if available.
Close the Preferences window and completely quit Microsoft Excel. Relaunch the application to verify that it opens normally with only a single blank workbook.

Start Excel in Safe Mode and Disable Add-ins
If the issue persists, a faulty third-party add-in might be forcing files to open. Safe mode bypasses these add-ins for troubleshooting.
Try WPS Office for a Bug-Free Spreadsheet Experience
If Microsoft Excel keeps displaying startup errors or opening unwanted files, consider switching to WPS Office. It is a lightweight, fully compatible, and free alternative that seamlessly handles all your spreadsheet needs without configuration headaches.
- 1. Download WPS Office: Visit the official WPS website and download the free installation package for your Mac or PC.
- 2. Install the Software: Run the installer and follow the simple on-screen instructions to set up the office suite.
- 3. Open Your Spreadsheets: Launch WPS Spreadsheets and drag and drop your existing .xlsx files directly into the workspace to start working seamlessly.

Frequently Asked Questions
Why does Excel show a .localized file error on my Mac?
The .localized file is a hidden macOS system file used to translate folder names. If Excel is accidentally configured to open all files in a specific folder (like your Documents folder) at startup, it will attempt to open this hidden system file alongside your spreadsheets, resulting in an access error because it is not a valid workbook format.
How do I stop Excel from opening old files at startup?
You need to clear the startup folder preference. Go to Excel > Preferences > General, find the 'At startup, open all files in' text box, and delete any file path listed there. This prevents Excel from batch-loading files from that directory.
Will reinstalling Microsoft Office fix the multiple files opening issue?
Not necessarily. Preference files are often retained on your computer even during a standard uninstall. Clearing the startup preferences directly in the settings or resetting the Excel preferences file (.plist on Mac) is usually a faster and much more effective solution.




