An oos file extension is related to the Apache OpenOffice (, an office suite for Windows, Mac, Linux, etc. An oos file contains spreadsheet.

Detailed description

Software that open oos file

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OOS file extension - Apache OpenOffice ( spreadsheet

What is oos file? How to open oos files?

File type specification:

Document file type icon Document file type

oos file icon: oos filetype icon

The oos file extension is associated with the Apache OpenOffice (, a suite of office applications (word processor, spreadsheet editor) and others  released for various platforms.

The oos file contains spreadsheet from some older versions of Apache OpenOffice.

The default software associated to open oos file:

Apache OpenOffice Calc ( Calc) icon Project Team logoApache OpenOffice Calc ( Calc)  Multiplatform software

Company or developer: Project Team Calc ( Calc) is a free spreadsheet application that comes with It is compatible with most current spreadsheet file formats and offers many innovative features.

Calc's Advanced DataPilot technology makes it easy to pull in raw data from corporate databases; cross-tabulate, summarize, and convert it into meaningful information.

Calc's wizards guides you through choosing and using a comprehensive range of advanced spreadsheet functions, or download templates from our Extensions repository for ready-made spreadsheet solutions.

Styles and Formatting makes it easy to apply flexible cell formatting options, including freely rotating contents, templates, backgrounds, borders, and many more.

Apache OpenOffice ( icon Project Team logoApache OpenOffice (  Multiplatform software

Company or developer: Project Team

Apache OpenOffice ( is popular free office suite for variety of operating systems. is compatible with other major office suites. can create and edit documents (Writer), spreadsheets (Calc), presentations (Impress), graphics (Draw) and databases (Base). is localized in to 120 languages.

Help how to open:

Use Calc to open *.oos files.

How to convert:

Compatible tools are able to export *.oos files to other formats.

List of software applications associated to the .oos file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open oos file, edit oos file, convert oos file, view oos file, play oos file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting oos files.

Software that open oos file - Apache OpenOffice ( spreadsheet

Programs supporting the exension oos on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open oos file action.


Main software associated with oos file by default:
Apache OpenOffice Calc ( Calc) small icon Apache OpenOffice Calc ( Calc)
Other suggested software:
LibreOffice Calc small icon LibreOffice Calc

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