| OpenOffice.org OpenDocument Spreadsheet Template Format | |
| OASIS | |
| Ads |
OTS file format is used by Calc, an application included in OpenOffice suite. Calc is a spreadsheet program. OTS files are used as spreadsheet document templates.
Templates allow users to create standardized documents with predefined formatting. Premade OTS template files can be downloaded from producers website. Of course, users can also create their own custom templates.
| .aws | Ability Spreadsheet Spredsheet Format |
| .dfg | Data Flask Grid Format |
| .dis | Oracle Discoverer Workbook Format |
| .edx | EDraw Max Drawing Format |
| .edxz | Edraw Compressed XML FIle |
| .fcs | First Choice Spreadsheet |
| .fods | OpenDocument Flat XML Spreadsheet Format |
| .gsheet | Link To Google Sheets Web Application Spreadsheet Document |
