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.OIS File Extension

File TypeOrigin Analyses Theme File

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CategorySettings Files

What is a OIS file?

An OIS file is a theme file created by Origin, a data analysis and graphing application used by various scientists and engineers. It contains settings in XML format that customize the appearance of one or more analyses windows that appear in Origin.

More Information

You most likely will never encounter an OIS theme file when using Origin. The file is not meant to be opened by the user. Instead, it stores the settings that are referenced by Origin for analyses.

NOTE: OIS files are typically located in the "AnalysisAndReportTable" folder of the C:\Program Files\OriginLab\Origin <version>\Themes installation.

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Programs that open OIS files

Updated 3/14/2019

About OIS Files

Our goal is to help you understand what a file with a *.ois suffix is and how to open it.

The Origin Analyses Theme file type, file format description, and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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