UOS File Extension
Uniform Office Spreadsheet
- File Type uos
- Popularity
- Application NeoOffice
- Category Spreadsheet Files
- Format Binary
What is a UOS file?
Files with the UOS extension are specifically tied to Uniform Office Spreadsheet, a Spreadsheet Files type, and there are 113 files in this category.
UOS file support extends to various operating systems, including Linux, Windows and Mac OS. You can open a UOS file using one of 3 programs, for example LibreOffice Calc, OpenOffice Calc and NeoOffice.
Programs that support UOS files
How to open a UOS file?
The most common reason why a UOS file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
Thanks to their popularity, LibreOffice Calc, OpenOffice Calc and NeoOffice are often the go-to programs for managing UOS files. To install the updated version of NeoOffice, simply go to the Planamesa site and download the installer compatible with all major platforms.
After setup, the operating system should recognize UOS files and link them with NeoOffice.
Set NeoOffice to open UOS by default
Change default apps on Mac
- Right-click or use Control + Left-click on the desired UOS file to access the file’s context menu;
- Choose "Open in Application" and click "Other";
- Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
- Choose "All Programs" within this menu and locate NeoOffice. Check the box next to "Always open in app" to set it as the default program.
Change a default app in Windows
- Start the process by right-clicking on your UOS file and selecting "Open With". From there, click "Choose another app" to continue;
- Find the NeoOffice application in the pop-up window and select it as your preferred program;
- Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening UOS files.
Easy UOS Troubleshooting
UOS files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.
Why does NeoOffice stop responding or crash intermittently?
Lack of regular software updates can cause NeoOffice to crash. Make sure you have installed the latest updates for Planamesa products.
Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.
What are the best practices for repairing a UOS file that has gone bad?
Start a recovery program, open the damaged UOS file and then select the "Repair" menu item to start the repair procedure. Please wait patiently for the recovery process to finish as it will automatically repair the damaged spreadsheet files.
How can I confirm if my UOS file has been damaged?
Characteristics of corrupted UOS spreadsheet files can include:
- Editing the archive in LibreOffice Calc is hampered by poor overall performance;
- Trying to work with the archive in NeoOffice or other programs causes instability or program crashes;
- The file does not open correctly or displays error messages;
- An unexplained increase in the size of the UOS file;
- The file operation is accompanied by the display of error messages;
How to edit a UOS file?
To modify UOS files, you need to install special software that makes it possible to open and edit spreadsheet files. Online UOS editors are more restricted compared to software designed for Uniform Office Spreadsheet.
Best UOS editors 2026
Based on your described criteria, here is a list of available UOS editors.
| UOS Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| OpenOffice Calc | OpenOffice | Windows, Mac OS, Linux | 4.6 out of 5 (44 reviews) |
| LibreOffice Calc | TDF | Windows, Mac OS, Linux | 4.4 out of 5 (32 reviews) |
| NeoOffice | Planamesa | Mac OS | 4.2 out of 5 (40 reviews) |
Convert files to and from UOS
If obstacles arise while working with a UOS file, you may convert it to formats like CSV, XLS, DIF or other similar types for smoother handling.
After converting a UOS file, some capabilities may be limited, but you can often convert it back to the original format.