Worksheet — Single sheet in an Aspose.Cells FOSS Workbook

from aspose.cells_foss import Workbook

workbook = Workbook()
worksheet = workbook.worksheets[0]

worksheet.cells["A1"].value = "Hello"
worksheet.cells["A2"].formula = "=A1"
workbook.save("output.xlsx")

from aspose.cells_foss import Workbook

workbook = Workbook()
ws = workbook.worksheets[0]
ws.name = "Sales"

# Set header and data values
ws.cells["A1"].value = "Month"
ws.cells["B1"].value = "Revenue"
ws.cells["A2"].value = "January"
ws.cells["B2"].value = 12500
ws.cells["A3"].value = "February"
ws.cells["B3"].value = 14800

# Add a SUM formula
ws.cells["B4"].formula = "=SUM(B2:B3)"

# Apply bold styling to the header row
style = ws.cells["A1"].get_style()
style.font.bold = True
ws.cells["A1"].apply_style(style)
style2 = ws.cells["B1"].get_style()
style2.font.bold = True
ws.cells["B1"].apply_style(style2)

workbook.save("sales_report.xlsx")