SDC File Extension
Apache OpenOffice Calc Spreadsheet
- File Type sdc
- Developer Oracle
- Popularity
- Application PlanMaker Viewer
- Category Spreadsheet Files
What is a SDC file?
The SDC extension is related to Apache OpenOffice Calc Spreadsheet and is classified in the Spreadsheet Files category, which contains 113 files.
Oracle, the developer of the Apache OpenOffice Calc Spreadsheet (SDC), has released file format and 36 programs designed to handle them.
SDC file support extends to various operating systems, including Linux, Mac OS and Windows. There are 10 programs available to open a SDC file, including popular tools like LibreOffice Calc, PlanMaker Viewer and OpenOffice Calc.
MIME types
- application/soffice
- application/vnd.stardivision.calc
- application/x-staroffice
- application/x-soffice
Programs that support SDC files
How to open a SDC file?
If you are having trouble opening a SDC file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.
Thanks to their popularity, LibreOffice Calc, PlanMaker Viewer and OpenOffice Calc are often the go-to programs for managing SDC files. If you want the most recent release of PlanMaker Viewer, head over to the SoftMaker site and download the version designed to run on all platforms.
After completing the installation, SDC files should be recognized by the system and linked to PlanMaker Viewer.
Set PlanMaker Viewer as your default SDC viewer
Set default app to open files on Mac
- Right-click or Control + left-click on the desired SDC file to open a menu of available actions;
- Choose "Open in Application" and click "Other";
- In the lower section of the window, you’ll find the "Enable" menu, with "Recommended Programs" pre-selected as the default option;
- Select "All Programs" in this menu, and then search for PlanMaker Viewer. Check the box next to "Always open in app" to make sure it’s the default option.
Change a default app in Windows
- To get started, right-click your SDC file, then choose "Open With" and select "Choose Another Application" from the context menu;
- From the list of applications in the pop-up window, find and select PlanMaker Viewer as your desired application;
- Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening SDC files.
Solving Common SDC File Challenges
While SDC files can sometimes present difficulties, most problems can be resolved quickly with minor software modifications. Check the tips below to help solve them.
What Causes PlanMaker Viewer to Crash Frequently?
Insufficient software updates are a likely cause of PlanMaker Viewer crashes. Be sure to install the latest updates for SoftMaker products.
A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.
How can I restore a damaged SDC file?
Start a data recovery program and open the damaged SDC file. Then, choose the "Repair" option from the menu. Allow the recovery process to complete, which will automatically repair the damaged spreadsheet files.
How can I determine if my SDC file is damaged?
Characteristics of corrupted SDC spreadsheet files can include:
- PlanMaker Viewer or other programs stop responding or crash when trying to handle the file;
- Error notifications appear during file manipulation;
- When opening the file, errors occur or the inability to access its contents;
- Unexplained SDC file size inflation;
- Editing the archive in LibreOffice Calc is hampered by poor overall performance;
How to edit a SDC file?
To modify SDC files, you need to install special software that makes it possible to open and edit spreadsheet files. Online SDC editors are more restricted compared to software designed for Apache OpenOffice Calc Spreadsheet.
Best SDC Editor Software in 2026
Taking the above factors into account, we have selected a list of SDC editors currently available.
| SDC 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) |
| PlanMaker | SoftMaker | Windows | 4.4 out of 5 (39 reviews) |
| NeoOffice | Planamesa | Mac OS | 4.2 out of 5 (40 reviews) |
| StarOffice | Oracle | Windows | 4.1 out of 5 (35 reviews) |
Convert files to and from SDC
If working with a SDC file is challenging, one solution is to convert it to formats like XLS, DOC, XLSX, ODS or other supported formats.
After converting a SDC file, some capabilities may be limited, but you can often convert it back to the original format.