ODT is the file extension for the OpenDocument format (or ODF), typically used with various versions of OpenOffice software. The file format is used to edit and display text for spreadsheets and word processing documents, so it is not traditionally shared or stored as an image file. You can, however, capture a screen of the file and save it to the universally visible JPG file format to send and share with others.
Open the ODT file in your OpenOffice application. Click the full-screen button in the browser window to fit as much of the document on your screen at once.
Hold the "Alt" key and press the "Print Scrn" key to copy a screen capture of everything currently displayed in the OpenOffice application window.
Open Microsoft Paint.
Press "Ctrl" plus "V" to paste the screen capture into the Paint window.
Click "File" and select "Save As." Change the file type to JPG and enter a name for the file. Click "Save."
Alternately, save the ODT file as a PDF in OpenOffice, then open the PDF in a free online image editor that supports the PDF format and save it as a JPG.