.OTS File Extension

OpenDocument Spreadsheet Template

Developer OASIS
3.8  |  12 Votes

What is an OTS file?

An OTS file is a spreadsheet template created by the Calc program included in Apache OpenOffice (formerly OpenOffice.org). It contains a spreadsheet saved in OASIS' OpenDocument XML-based formatting. Calc users create OTS files to replicate spreadsheets with the same styles and formatting as .ODS files .

More Information

Screenshot of a .ots file in Apache OpenOffice Calc 4
OTS file open in Apache OpenOffice Calc 4

Calc is one of several programs available in the OpenOffice suite. It is similar to the Excel program available in the Microsoft Office suite. OTS templates may store various types of spreadsheets, such as invoices, budget planners, and calendars.

In Calc, you can create your own templates with custom spreadsheet layouts, data, fonts, and styles. You can also download templates from the OpenOffice website by selecting File → New → Templates and Documents and then clicking "Get more templates online...".

NOTE: The Organization for the Advancement of Structured Information Standards (OASIS) maintains the OpenDocument standard.

How to open an OTS file

You can open an OTS file with various spreadsheet applications, including OpenOffice Impress (cross-platform), LibreOffice Impress (cross-platform), Planamesa NeoOffice (macOS), and Collabora Office (multiplatform).

How to convert an OTS file

OpenOffice Calc can convert OTS files to many file types, including the following formats:

  • .ODS - OpenDocument Spreadsheet
  • .XLS - Microsoft Excel Spreadsheet (Legacy)
  • .XLT - Microsoft Excel Template (Legacy)
  • .CSV - Comma-Separated Values
  • .DIF - Data Interchange Format
  • .PDF - Portable Document Format
  • .UOS - Uniform Office Spreadsheet
  • .PXL - Pocket Excel File
  • .SXC - StarOffice Calc Spreadsheet
  • .STC - StarOffice Calc Spreadsheet Template
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Programs that open OTS files

OtsAV Album File

Developer Ots Labs
3.0  |  10 Votes

Audio file format used by OtsAV professional audio software; supports album cover art and long field lengths for artist and title information; can store albums as one logical file with multiple items, like a virtual CD.

Programs that open OTS files


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