In the File format field, select the file format you want, for example GIF or JPEG.
If you only want to export the selected objects, mark the Selection box.
If Selection is not marked, the entire page of the document is exported.
Enter a name for the file and click Export.
To export a bitmap in Writer: Right-click the bitmap, choose Save Graphics. You see the Graphics Export dialog. Enter a file name and select a file type.