Another use for the OTS file extension is for OpenDocument spreadsheet templates. OpenDocument formats were created to serve as an open-source and free standard for office documents. This format was developed with the aim of making it an industry standard so that several programs can support the same file format. It is meant to allow users to easily share files across several office programs. The source code for the format was released to the public so that other developers and programmers can contribute to its development. The OTS file extension was originally developed for the Spreadsheet templates used by the StarOffice program suite. StarOffice provided several office tools, including a spreadsheet program. The spreadsheet program allowed users to input or paste data to a table. Data can then be processed, filtered or sorted by the program. Files with the file extension .ots contain basic formatting that is often used in creating spreadsheet files. These templates come with the installed program so that users can create spreadsheets without repeating menial formatting tasks. The StarOffice program suite was made the basis for the OpenOffice.org program suite. OpenOffice.org is essentially a free version of StarOffice. OpenOffice.org also stores spreadsheet files with the .ots file extension.
The OTS file extension is used to signify spreadsheet template files in the OpenOffice software suite. OTS files can be accessed and edited with the appropriate software.The OTS extension is also used to refer to audio album files in the OtsAV professional audio software program.