How to read tablature? 
TAB:

xA|------0----|-----------|------0----|-----------|--5---5----|--2--------|
xE|--3-----3--|--0--------|--3-----3--|--0--------|-----------|-----------|
xC|-----------|-----------|-----------|-----------|-----------|-----------|
xG|-----------|-----------|-----------|-----------|-----------|-----------|

xA|--3---3----|-----------|--0---0----|--3---2-0--|------0----|-----------|
xE|-----------|--3--------|-----------|-----------|--3-----3--|--0--------|
xC|-----------|-----------|-----------|-----------|-----------|-----------|
xG|-----------|-----------|-----------|-----------|-----------|-----------|

xA|--0---0----|--3---2-0--|------0----|-----------|--5---5----|--8---5----|
xE|-----------|-----------|--3-----3--|--0--------|-----------|--------7--|
xC|-----------|-----------|-----------|-----------|-----------|-----------|
xG|-----------|-----------|-----------|-----------|-----------|-----------|

xA|-----------|--7--------|--3--------|-----------|-----------||
xE|--8--------|-----------|------3-0--|--3---1----|-----------||
xC|-----------|-----------|-----------|--------2--|--0--------||
xG|-----------|-----------|-----------|-----------|-----------||


CHORDS:

C            C
Silent night, holy night
G            C
All is calm, all is bright
F               C
Round yon Virgin Mother and Child
F             C
Holy Infant so tender and mild
G7                C
Sleep in heavenly peace
C       G7       C
Sleep in heavenly peace
C            C
Silent night, holy night!
G               C
Shepherds quake at the sight
F                  C
Glories stream from heaven afar
F                  C
Heavenly hosts sing Alleluia!
G7                     C
Christ, the Saviour is born
C          G7         C
Christ, the Saviour is born
C            C
Silent night, holy night
G           C
Son of God, love's pure light
F                 C
Radiant beams from Thy holy face
F               C
With the dawn of redeeming grace
G7                  C
Jesus, Lord, at Thy birth
C     G7           C
Jesus, Lord, at Thy birth