What information does textgrid File contain? Can you give me an example

[TreasureShi]

What information does textgrid File contain? Can you give me an example

[Simon]

an example textgrid file generated by MFA align

File type = "ooTextFile"
Object class = "TextGrid"

xmin = 0 
xmax = 5.999 
tiers? <exists> 
size = 2 
item []: 
    item [1]:
        class = "IntervalTier" 
        name = "words" 
        xmin = 0 
        xmax = 5.999 
        intervals: size = 18 
        intervals [1]:
            xmin = 0 
            xmax = 0.46 
            text = "" 
        intervals [2]:
            xmin = 0.46 
            xmax = 0.72 
            text = "er2" 
        ...
    item [2]:
        class = "IntervalTier" 
        name = "phones" 
        xmin = 0 
        xmax = 5.999 
        intervals: size = 41 
        intervals [1]:
            xmin = 0 
            xmax = 0.46 
            text = "" 
        intervals [2]:
            xmin = 0.46 
            xmax = 0.52 
            text = "ʔ" 
        ....