solved using code
var preExpression = true;
var xy = app.project.item(3).layer(1).transform.position.valueAtTime(1, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy2 = app.project.item(3).layer(1).transform.position.valueAtTime(2, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy3 = app.project.item(3).layer(1).transform.position.valueAtTime(3, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy4 = app.project.item(3).layer(1).transform.position.valueAtTime(4, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy5 = app.project.item(3).layer(1).transform.position.valueAtTime(5, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy6 = app.project.item(3).layer(1).transform.position.valueAtTime(6, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy7 = app.project.item(3).layer(1).transform.position.valueAtTime(7, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy8 = app.project.item(3).layer(1).transform.position.valueAtTime(8, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy9 = app.project.item(3).layer(1).transform.position.valueAtTime(9, preExpression); // returns an array of 2 or 3 [x,y,z]
var xy10 = app.project.item(3).layer(1).transform.position.valueAtTime(10, preExpression); // returns an array of 2 or 3 [x,y,z]
var randomname = Number(new Date());
var filepath = “~/Desktop/” + randomname + “.txt”;
var outfile = File(filepath);
outfile.open(‘a’);
if (outfile !== ”) {
outfile.writeln(xy);
outfile.writeln(xy2);
outfile.writeln(xy3);
outfile.writeln(xy4);
outfile.writeln(xy5);
outfile.writeln(xy6);
outfile.writeln(xy7);
outfile.writeln(xy8);
outfile.writeln(xy9);
outfile.writeln(xy10);
outfile.close();
}