The File Extensions Database

.OTP File Extension

  • Developer by: OASIS
  • Category: Data Files
  • Format: Binary

What is an .OTP file?

.OTP is OpenDocument Presentation Template

An OTP file is a presentation template created by Impress, a program included with Apache OpenOffice (formerly known as It contains a presentation, which includes a master slide as well as a content slide with text, images, shapes, multimedia content, transition effects, and other slide elements. OTP files are used for styling presentations with the same appearance.

OTP file open in Apache OpenOffice Impress 4.1.3

OTP files may also be created and opened by presentation software that supports the OpenDocument standard. However, most OTP files are created by Impress, which is one of several programs available in the OpenOffice suite. It is similar to the PowerPoint program available in the Microsoft Office suite. Many users who need an application like PowerPoint but can't afford the cost turn to Impress and OpenOffice as a free alternative. The OTP file is used by Impress to save a template of a presentation the same way that PowerPoint saves a template of a presentation in the .POT or .POTX file. OTP files are based on the OASIS OpenDocument standard, which uses an XML format to save presentations.

You will most likely only see the OTP file if you use the Impress application or if another OpenOffice user shares a presentation template with you. Examples of templates include family photo slide shows, school reports, and financial summaries.

Programs that open OpenDocument Presentation Template
Apache OpenOffice
Apache OpenOffice
Planamesa NeoOffice
Apache OpenOffice
File Type 2 Origin Graph Template
Developer by: OriginLab Category: Settings Files

An OTP file is a graph template created by Origin, a data analysis and graphing application used by various scientists and engineers. It contains settings for a graph and is used to create .OGG graphs. OTP files can be used for a variety of graph types, such as a bar, pie, column, waterfall, 3D, line, symbol, polar, or statistical.

You can only open OTP files with Origin, which can be used to create, open, and edit OTP files. The program is only available for Windows.

To open an OTP file in Origin, select File → Open..., select the "Origin Template .otp" file type, navigate to the OTP file location, and click Open.

NOTE: The release of Origin 2018 included an updated unicode format for saving workbook templates (.OTPU), which features performance advantages over the older, non-unicode OTP file format.

Programs that open Origin Graph Template
OriginLab Origin

How to solve problems with OTP files

  • Associate the OTP file extension with the correct application. On :
    Windows: Right click on any OTP file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.OTP files". Mac: Right click (or Ctrl-click) the OTP file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .OTP is OpenDocument Presentation Template. Because only the current version supports the latest OTP file format. Search, therefore, e.g. on the OASIS manufacturer website after an available .OTP is OpenDocument Presentation Template update.
  • To make sure that your OTP file is not corrupted or virus-infected, get the file again and scan it with antivirus software.