[OSM-talk-ie] Conversion from QGIS project to Geojson and to .shp files

[Brian Hollinshead]

I have used the Georeferencer plugin in QGIS to reference the four sheets
of John Rocque's map of Dublin City and Environs of 1750s. I have four
separate projects. I have permission to add these to hollinshead (dot)
net/maps/dublinhistoric and to an OSM.ie page if thought desirable.

Please I need help to

1) get outputs in Geojson format.

2) For a separate QGIS project I want to get a .shp file output

I am still unfamiliar with QGIS except for use of Georeference plugin so
would appreciate a step by step how-to please.