Aspose.Cells FOSS API Reference
ImageRenderOptions
Aspose.Cells FOSS is an open-source Python library for creating, reading, and modifying spreadsheet files without requiring Microsoft Excel. It supports XLSX and CSV formats for input, and adds Markdown export via save_as_markdown(). Biblioteket är strukturerat kring en Workbook rotobjekt som hanterar kalkylblad, stilar, diagram och I/O.
Den centrala ingångspunkten är Workbook. Varje Workbook innehåller en eller flera Worksheet objekt som nås via wb.worksheets[index]. Enskilda celler nås genom Cells samling med A1-notation eller nollbaserade rad-/kolumnindex.
from aspose.cells_foss import Workbook
wb = Workbook()
ws = wb.worksheets[0]
ws.cells["A1"].value = "Revenue"
ws.cells["B2"].value = 42
wb.save("output.xlsx")Workbook och Worksheet
ImageRenderOptions Workbook klassen är rotobjektet för alla kalkylbladsoperationer. Den hanterar filinläsning, sparande och åtkomst till kalkylblad samt dokumentegenskaper.
from aspose.cells_foss import Workbook
wb = Workbook() # new workbook
wb = Workbook("input.xlsx") # open existing file
wb = Workbook("protected.xlsx", password="secret") # open encrypted file
ws = wb.worksheets[0] # first worksheet (0-based)
ws = wb.add_worksheet("Sheet2") # add a named worksheet
ws.cells["A1"].put_value("Hello") # write by A1 reference
ws.cells["A1"].value # read value (property, no parentheses)
ws.cells["A2"].formula = "=SUM(B1:B5)"
wb.save("output.xlsx") # save as XLSX
wb.save("output.csv") # auto-detects format from extension
wb.save_as_markdown("output.md") # export as Markdown table
wb.save("output.xlsx", password="secret") # save with AES encryptionImageRenderOptions
Lägg till diagram i ett kalkylblad med hjälp av add_* metoder på ws.charts. Varje metod tar fyra positionsargument: top_row, left_col, bottom_row, right_col. Åtkomst till diagrammet via index för att sätta dess titel och dataserier.
from aspose.cells_foss import Workbook
wb = Workbook()
ws = wb.worksheets[0]
chart_idx = ws.charts.add_line(upper_left_row=0, upper_left_col=4,
lower_right_row=20, lower_right_col=12)
chart = ws.charts[chart_idx]
chart.title = "Monthly Sales"
chart.n_series.add("B2:B7", category_data="A2:A7", name="Sales")
# Other add methods: add_bar, add_pie, add_area, add_scatter,
# add_waterfall, add_combo, add_stock, add_surface, add_radar,
# add_treemap, add_sunburst, add_histogram, add_funnel,
# add_box_whisker, add_mapImageRenderOptions
Lägg till ritformer och textrutor i ett kalkylblad med ws.shapes.
from aspose.cells_foss import Workbook
from aspose.cells_foss import MsoDrawingType, TextAlignmentType, TextAnchorType
wb = Workbook()
ws = wb.worksheets[0]
shape = ws.shapes.add(MsoDrawingType.ROUNDED_RECTANGLE, 1, 1, 5, 5)
shape.text = "Hello"
shape.fill.fore_color = "90EE90"
shape.font.bold = True
shape.text_horizontal_alignment = TextAlignmentType.CENTER
shape.text_vertical_alignment = TextAnchorType.MIDDLE
textbox = ws.shapes.add_text_box(7, 1, 11, 8)
textbox.text = "Notes"Cellvärden och stilar
Läs och skriv cellvärden med hjälp av .value egenskapen. Ändra formatering genom att nå cell.style direkt.
from aspose.cells_foss import Workbook
workbook = Workbook()
worksheet = workbook.worksheets[0]
# Write values
worksheet.cells["A1"].value = "Hello"
worksheet.cells["B1"].value = "World"
worksheet.cells["A2"].value = 42
worksheet.cells["B2"].value = 3.14
# Read a value
value = worksheet.cells["A1"].value
print(f"Cell A1 contains: {value}")
# Apply a style via the cell's style property
cell = worksheet.cells["A1"]
cell.style.font.bold = True
cell.style.font.size = 14
cell.style.font.color = "FF0000" # RRGGBB hex, no # prefix
cell.style.set_horizontal_alignment("center")
cell.style.set_number_format("#,##0.00")
cell.style.set_border("bottom", line_style="thin")
workbook.save("output.xlsx")Obs: när du ställer in font.color, använd en hex-sträng utan en # prefix (t.ex., "FF0000" för röd).
Datavalidering
Lägg till rullgardinsmeny eller andra valideringsregler för ett cellområde med hjälp av ws.data_validations.
from aspose.cells_foss import Workbook, DataValidationType
workbook = Workbook()
worksheet = workbook.worksheets[0]
validation = worksheet.data_validations.add("A1:A10")
validation.type = DataValidationType.LIST
validation.formula1 = '"Option1,Option2,Option3"'
workbook.save("validation.xlsx")ImageRenderOptions
Spara eller öppna lösenordsskyddade arbetsböcker:
from aspose.cells_foss import Workbook
workbook = Workbook()
worksheet = workbook.worksheets[0]
worksheet.cells["A1"].value = "Confidential Data"
# Save with password protection
workbook.save("protected.xlsx", password="mypassword")
# Open a password-protected file
workbook2 = Workbook("protected.xlsx", password="mypassword")Publikt API
ImageRenderOptions Cells klassen ger åtkomst till enskilda celler med A1‑stilnotation (t.ex., "A1") eller 1‑baserade rad/kolumn‑tupelindex. Den Cell klassen representerar en enskild cell och exponerar value, formula, och style som läs/skriv‑egenskaper. Sammanfogning och uppdelning av celler stöds via merge() och unmerge() metoder på Cells.
from aspose.cells_foss import Workbook
workbook = Workbook()
worksheet = workbook.worksheets[0]
worksheet.cells["A1"].value = "Hello"
worksheet.cells["B1"].value = "World" # A1 notation preferred
workbook.save("output.xlsx")| ImageRenderOptions | ImageRenderOptions | ImageRenderOptions |
|---|---|---|
Workbook | arbetsbok | Rot‑arbetsboksobjekt |
Worksheet | arbetsblad | Enskilt arbetsblad med celler, diagram, former |
Cells | celler | Cellsamling med A1‑ och 1‑baserad (rad, kol) åtkomst |
Cell | cell | Enskild cell: värde, formel, stil |
Style | stil | Cellformatering: teckensnitt, fyllning, kanter, justering |
Chart | diagram | Inbäddat diagram |
DataValidation | data-validering | Regel för validering av cellintervall |
CSVHandler | csv-hanterare | CSV import/export |
MarkdownHandler | markdown-hanterare | Markdown-export |
JsonHandler | json-hanterare | JSON-export |
Shape | form | Rita form eller textruta |
Table | tabell | Excel strukturerad tabell |
SparklineGroup | sparkline | Sparkline-diagram |
HorizontalPageBreakCollection | sidbrytning | Manuella sidbrytningar |
AgileEncryptionParameters | kryptering | AES‑krypteringsparametrar |
SaveFormat | arbetsbok | Utdataformat enum |
Vanliga mönster
# Styling a cell
cell = ws.cells["A1"]
cell.style.font.bold = True
cell.style.font.size = 14
cell.style.font.color = "FF0000" # red (RRGGBB, no #)
cell.style.set_horizontal_alignment("center")
cell.style.set_number_format("#,##0.00")
cell.style.set_border("bottom", line_style="thin")# Add a dropdown validation
from aspose.cells_foss import DataValidationType
dv = ws.data_validations.add("B1:B10")
dv.type = DataValidationType.LIST
dv.formula1 = '"Red,Green,Blue"'
dv.show_dropdown = True