I recently requested DEMs for my area of interest. The data has however arrived in ORT file format - how do I create DEMs from this data in QGIS? When I open the files in Notepad there are three columns which respectively contain x and y co-ordinates in m (Hartebeeshoek Lo31) and a third column containing the height value.
Try the 'Add Delimited Text Layer' plugin (blue rectangle). With that plugin you can create a point-layer which you then can use directly or you can rasterize using the vector to raster option.