calc-workbook is an easy-to-use Python library that loads Excel files, computes all formulas using the formulas engine, and provides a clean, high-level API to access computed cell values from each sheet.
openpyxl is the most common Python package for reading and writing Excel files; however, it does not calculate cell formulas.
The formulas package adds support for evaluating a large set of Excel formulas, but it does not provide a straightforward interface to retrieve the computed values per sheet.
calc-workbook bridges that gap by exposing a simple interface with two core classes:
CalcWorkbook– loads and computes the workbook, providing access to individual sheets.CalcSheet– provides access to computed cell values and sheet metadata.
pip install calc-workbook| A | B | |
|---|---|---|
| 1 | 10 | 5 |
| 2 | 20 | 15 |
| 3 | =A1+A2 |
=B1*B2 |
from calc_workbook import CalcWorkbook
# Load workbook and compute formulas
wb = CalcWorkbook.load("example.xlsx")
# List available sheets (in lowercase)
print(wb.get_sheet_names())
# Access a specific sheet in lowercase
sheet = wb.get_sheet("sheet1")
# Access first sheet
sheet = wb.get_sheet()
# Retrieve computed values
print("A1:", sheet.cell("A1")) # 10
print("A1:", sheet.cell([1, 1])) # 10
print("A2:", sheet.cell("A2")) # 20
print("A3:", sheet.cell("A3")) # 30
# Get sheet dimensions
print("Rows:", sheet.rows()) # 3
print("Cols:", sheet.cols()) # 2- Sheet names are stored and accessed in lowercase internally.
When calling
get_sheet(), always use the lowercase name (e.g.,"sheet1").
Represents a computed Excel workbook.
| Method | Description |
|---|---|
load(filename: str) -> CalcWorkbook |
Loads an Excel file, computes all formulas using the formulas engine, and returns a ready-to-use workbook. |
get_sheet_names() -> list[str] |
Returns the list of all sheet names in the workbook. |
get_sheet(name: str) -> CalcSheet |
Returns a CalcSheet object for the given sheet name. |
Represents a single computed Excel worksheet.
| Method | Description | ||
|---|---|---|---|
rows() -> int |
Returns the maximum number of rows containing data. | ||
cols() -> int |
Returns the maximum number of columns containing data. | ||
cell(ref) -> Any |
Retrieves the computed value of a cell, either by "A1" format or [col, row] coordinates. |
MIT License
Copyright (c) 2025 Alexandre Bento Freire
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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