It's a green app with a white "X" on it. If you would rather use a pre-existing Excel document, instead double-click the Excel document in question. It's in the top-left side of the "Template" window. Doing so will select it. This is the number from which the rest of the column will be selected. For example, you might type in your yearly salary here. To do so, you'll type in a negative version of the number you wish to subtract (e.g., if you wish to subtract 300, type in "-300").  You'll type in one subtraction per cell. Make sure each of the numbers you enter are in the same column as the main number. For the salary example, you'd likely type "-" followed by an expense for each box. This time, the cell doesn't need to be in the same column as the main number. Exclude the quotation marks. Doing so will set up the cell for a formula. The "SUM" command adds items together. There isn't an official "subtract" command, which is why you enter numbers in the negative format above. This command adds all cells in a column from the first cell number value through the last cell number value. For example, if the K1 cell is your main number and the last cell in the column with data in it is K10, you'd type "(K1:K10)". Doing so will run the formula in your selected cell, thereby replacing the formula with the final total.
एक्सेल (Excel) खोलें: Blank workbook (पीसी) या Excel Workbook (मैक) क्लिक करें: एक खाली सेल पर क्लिक करें: आपका मुख्य नंबर चुनें: नीचे की सेल्स में आपका कोई भी शेष (subtractions) लिखें: एक खाली सेल को क्लिक करें: सेल में "=" लिखें: सेल में SUM लिखें:  SUM के बाद में (CellName:CellName) लिखें: ↵ Enter या ⏎ Return दबाएँ: