It may seem random, but there is a basis for it. Computers work on the binary system, which is the mathematical number system that is base 2. If you start at 1 and keep doubling you will keep coming across numbers that are familiar in computing, including the amount of rows and columns in Excel 2003 and later versions:
1
2
4
8
16
32
64
128
256 (Column IV is the 256th column)
512
1024
2048
4096
8192
16384 (number of columns in Excel 2007 and onwards)
32768
65536 (number of rows in Excel 2003)
131072
262144
524288
1048576 (number of rows in Excel 2007 onwards)
the lowest number is 65536 and the lowest letter is IV
Column IV is not the last column in Excel 2007, as it was in Excel 2003. In Excel 2003 the last column is IV which is column 256. In Excel 2007 the last column is XFD, which is column 16384.
That depends on the version. Up to version 2003, it was row 65,536. From Excel 2007 onwards, it is row 1,048,576.
IZ10 would be an invalid address in version 2003 of Excel and earlier versions. The last column in Excel 2003 is column IV, so there is no column IZ. In versions from Excel 2007 onwards, IZ10 would be a valid cell address.
In Excel 2003 and earlier, there are 256 columns, so the last column is IV. From Excel 2007 onwards, there are 16,384 columns, so the last column is XFD.
There are 65536 Rows and collums go to IV
It depends which Spreadsheet program you're using. The maximums in Open Office are 65536 rows and 1024 columns. Microsoft Works limits you to 16383 rows and 282 columns.
16,384 columns can be found in versions of Excel from version 2007 onwards. That is column XFD. If it is an earlier version the last column is IV and there are 256 columns.
Column headings start at A. After reaching Z, the next is AA, then AB and so on. What the last column is will depend on the version of Excel that you have. Column IV, which is the 256th column, is in the versions up to Excel 2003. From Excel 2007 there are 16,384 columns and last one is column XFD.
That depends on the version. Up to version 2003, it is true. For versions since Excel 2007, the last column is XFD.
They identify each column in the worksheet. They are also used as part of the cell addresses, forming the first part of the address, along with a row number.. As an example, all cells in column C will have an address that starts with C, along with the row number of that cell. So cell C23 is in column C and row 23. F98 is in column F and row 98.
There are 268,435,456 cells and 1,048,576 rows, within those 256 columns.