How many sheets are there in a workbook, how many rows and columns each sheet has

　　Everyone is familiar with Excel spreadsheets, but few people have studied how many worksheets there are in a workbook, and how many rows and columns each worksheet has.

　　Below, for this most basic problem, I will explain the relevant knowledge to you.

　　① Worksheets in the workbook

　　For now, a workbook can contain up to 255 worksheets.

　　That is, each workbook, that is, each Excel file, can only contain up to 255 worksheets.

　　The name of the worksheet is generally named by Sheet1, Sheet2, Sheet3... Of course, you can completely modify the name of these worksheets.

　　②The number of rows and columns in the worksheet The maximum number of

　　rows is: 65536

　　The maximum number of columns is: 256 The

　　above data is the maximum number of rows and columns in Excel2003 and before. If the version is higher, for example, Excel2007 to Excel2012, etc., include The maximum number of rows is 1048576 (2^20) rows; the maximum number of columns is 16384 (2^14) columns.

　　The name of the row is represented by numbers: 1, 2, 3, 4, 5, 6... BZ, ..., IA-IV to represent.

　　And we usually face more grids in worksheets, or to put it professionally, cells.

　　Each cell is formed by the intersection of each row and each column. Therefore, the name of each cell is composed of the column name + row number.

　　For example, A1, refers to the first row in column A. Another example, Z99, refers to the 99th row in the Z column, and so on.

　　Finally, for example, in Excel 2003, the number of cells in each worksheet is 256 to 65536. Generally, only a few grids can be used to solve work problems, and it is rare to encounter the situation where all 256 to 65536 grids are used. Of course, if there is a need to use more grids than this, then Excel cannot solve such a problem, and database software ACCESS, VFP, MS SQL... should be used to save the data. Because Excel is just a lightweight "database".