For Compositor:
1. Open blender and on the splash screen click on image or General.
2. Press Ctrl+S or click File->Save and save your blend file.
3. Click Compositing tab and click new or check use nodes depending on your blender version.
4. Select and delete the Render Layers node.
5. Press Shift+a->input->Image. Connect Image Node’s image/color output to the Composit’s image input. You may want to add a viewer node and connect image node to it also.(Shift+a->output->Viewer)
6. Click on open button on the image node. Select your EXR sequence and click open image button or press enter. Note:Blender should detect it as a sequence as long as the file name ends in a sequential number. If it skips numbers then blender will treat those as blank frames. If for some reason Blender doesn’t detect the sequence you can click where it says single image and change it to image sequence and then set the number of frames.
7. Go to output tab of the properties editor under the Output panel configure to your needs. Such as render folder and video codec.
8. Go to render tab of the properties editor under the color management panel change View Transform to Standard.
9. Press Ctrl+S or click File->Save
10. Press ctrl+F12 or click render->Render Animation