> For the complete documentation index, see [llms.txt](https://docs.rmhpos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rmhpos.com/releases/old/3-10-2.md).
# 3.10.2
Release Date: March 28, 2022
## POS
### Automatic backup of the preferences file
Starting with release 3.10.2, POS will create a backup of the **RetailHero.preferences** file when a cashier logs out or when the application is closed. If there is any problem loading the preferences file, such as a file corruption, POS will restore the preferences file using the backup.
The **RetailHero.preferences** file contains POS preferences such as font size, screen resolution, and skin color. It is usually stored in **C:\ProgramData\RetailHero**.
## Central Manager
### Use file export and import to update Worksheet 304
Starting with release 3.10.2, you can export items from Worksheet 304 to a Microsoft Excel spreadsheet (in text, CSV, or XML format), make the changes in the spreadsheet, and then import the spreadsheet back into Central Manager. Refer to [**Use file export and import to update worksheets**](/central-manager/manage-store-inventory-using-worksheets/using-file-export-import-update.md) for more information.
### Add items by alias in worksheets and the Inventory Wizard
Starting with release 3.10.2, when you manually add items on the **Contents** tab of worksheets or in the **Inventory Wizard**, you can now use item aliases to look up items in the **Quick Scan** dialog.
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