Budur, looks like the shapefile suggestion won't work directly is sharepoint. Far as I can tell (I'm not an Esri ArcGIS for sharepoint expert) you've to have x, y and projection data as the source for sharepoint visualization. If you've used other tools/scripting to create the shapefile already, then you'll (probably) have to back up and export a table of the source data that includes the x, y and SRID data instead, then upload/ingest that into sharepoint.