Fayil na Duniya wato World File, fayil ne mai layi shida bayyana rubutu sidecar fayil amfani da yanayin bayanai tsarin (GIS) zuwa georeference raster taswirar images. Esri ne ya gabatar da takaddun fayil, kuma ya ƙunshi amintattun abubuwa shida na wani canjin canji wanda ke bayyana wuri, mizani da juyawar raster akan taswirar File:WorldFileParametersSchemas.gif Ma'anar jimla guda shida a cikin fayil na duniya (kamar yadda Esri ya bayyana ) shine: Layin 1: A : girman pixel a cikin x -zuwa cikin taswirar raka'a / pixel Layi na 2: D : juyawa game da y -axis Layi na 3: B : juyawa game da x -axis Layin na 4: E : girman pixel a cikin y- kwatance a cikin sassan taswira, kusan koyaushe ba shi da kyau Layi na 5: C : x -n daidaita tsakiyar pixel na hagu na sama Layi na shida: F : y -n daidaita tsakiyar pixel na hagu na sama Wannan bayanin yana ɓatarwa duk da cewa sifofin D da B ba juyawa suke ba, kuma cewa sifofin A da E ba su dace da girman pixel ba idan D ko B ba sifili ba ne.