CSV file with the data read and write 】 【 XLS/XLSX file

一、csv格式与xls/xlsx格式的区别

csv格式与xls/xlsxFormat of the file on the style looks like,且都可以用EXCEL打开,其中xls是Office2003版本的EXCEL表格,xlsx是2007版本及以上的EXCEL表格,这两种EXCELTables can be usedxlsread函数、xlswrite函数来读写文件.但csvFormat of the file with thexls/xlsxFormat of the file with different nature.

1）csv是文本文件,可以用记事本打开;xls/xlsx是二进制文件,只有用EXCEL才能打开.
2）csvFile can only save activity work cell in the table shown in the text and numeric,Data in each column to a comma,End of each line to enter a newline.If the cell contains a comma in the,It is the contents of the cell in double quotation marks.xls/xlsxFile between each cell separator forTab.
3）csv文件可以用记事本打开,进而转为txt格式的文件;xls/xlsx不能直接转为txt格式.If you want to convert,You need to save ascsv格式,然后再将csv以txt方式打开,点击另存为txt文件.

二、Two kinds of file formats to read and write operations

1.csv文件的读/写函数

csvread

语法：

data = csvread(filename);

filenameFor the specified directory file,例如 filename = ‘E:\MATLAB_Study\数据.csv’.

data = csvread(filename, r, c);

r、cRepresent the line and column number of the specified file,r和c为0时,Representatives from the first row and first column in the file to read data.

data = csvread(filename, r, c, rng);

rngSaid in the designated line and column number range between reading data,例如 rng = [R1 C1 R2 C2],R1和R2代表行号,C1和C2代表列号.

csvwrite

data = rand(5,6);			% 产生随机数
filename = '数据.csv';		% 文件名
csvwrite(filename,data);	% 写数据

2.xls/xlsx文件的读/写函数

xlsread

语法：

filename = '数据.xlsx';		% 文件名
sheet = 'sheet1';			% 工作表
range = 'A2:C3';			% 读取范围
[data2, text, rawData] = xlsread(filename,sheet,range);

sheet：指定读取的工作表;
range:The scope of work table;
data：数值数据;
text：文本数据;
rawData：原始数据,The value in the include file and text data.

xlswrite

filename = '写数据.xlsx';	% 文件名
data = rand(5,6);			% 产生随机数
sheet = 'sheet2';			% 工作表
xlswrite(filename,data,sheet);

三、应用案例

1.实例1

参考资料

[1] csv和xlsx区别
[2] matlab将多个excelRead both to aexcel的不同sheet中