Background-
The following code snippet will iterate over all worksheets in a workbook, and write a formula to every last column -
import openpyxl
filename = 'filename.xlsx'
filename_output = 'filename_output.xlsx'
wb = openpyxl.load_workbook(filename)
for sheet in wb.worksheets:
sheet.insert_cols(sheet.max_column)
for row in sheet.iter_rows():
row[-1].value = "=SUMIFS(J:J,M:M,#M:M)"
wb.save(filename_output)
Question -I cannot find documentation on how to name the column. Does anyone know how to achieve this?
Context -I want this column (in each worksheet) to be called 'Calculation'.
To get the last column, you can use sheet.max_column. Once you have updated the formulas, you can use sheet.cell(1,col).value = "Calc" to update the header. Updated code below...
import openpyxl
filename = 'filename.xlsx'
filename_output = 'filename_output.xlsx'
wb = openpyxl.load_workbook(filename)
for sheet in wb.worksheets:
sheet.insert_cols(sheet.max_column)
for row in sheet.iter_rows():
row[-1].value = "=SUMIFS(J:J,M:M,#M:M)"
sheet.cell(1,sheet.max_column).value = "Calculation" ## Add line inside FOR loop
wb.save(filename_output)
Output would look something like this.
Related
For my master thesis I've created a script.
Now I want that output to be printed to an excel sheet - I read that xlwt can do that, but examples I've found only give instructions to manually print one string to the file. Now I started by adding that code:
import xlwt
new_workbook = xlwt.Workbook(encoding='utf-8')
new_sheet=new_workbook.add_sheet("1")
Now I have no clue where to go from there, can you please give me a hint? I'm guessing I need to somehow start a loop where each time it writes to a new line for each iteration it takes, but am not sure where to start. I'd really appreciate a hint, thank you!
since you are using pandas you can use to_excel to do that.
The usage is quite simple :
Just create a dataframe with the values you need into your excel sheet and save it as excel sheet :
import pandas as pd
df = pd.DataFrame(data={
'col1':["output1","output2","output3"],
'col2':["output1.1","output2.2","output3.3"]
})
df.to_excel("excel_name.xlsx",sheet_name="sheet_name",index=False)
What you need is openpyxl: https://openpyxl.readthedocs.io/en/stable/
from openpyxl import Workbook
wb = openpyxl.load_workbook('your_template.xlsx')
sheet = wb.active
sheet.cell(row=4, column=2).value = 'what you wish to write'
wb.save('save_file_name.xlsx')
wb.close()
Lets say you would save every result to a list total_distances like
total_distances = []
for c1, c2 in coords:
# here your code
total_distances.append(total_distance)
and than save it into worksheet as:
with Workbook('total_distances.xlsx') as workbook:
worksheet = workbook.add_worksheet()
data = ["Total_distance"]
row = 0
worksheet.write_row(row,0,data)
for i in total_distances:
row += 1
data = [round(i,2)]
worksheet.write_row(row,0,data)
I am trying to split only the merged cells in Excel file (with multiple sheets) that are like:
Please note that there are partially/fully empty rows. These rows are not merged.
Using openpyxl, I found the merged cell ranges in each sheet with this code:
wb2 = load_workbook('Example.xlsx')
sheets = wb2.sheetnames ##['Sheet1', 'Sheet2']
for i,sheet in enumerate(sheets):
ws = wb2[sheets[i]]
print(ws.merged_cell_ranges)
The print output:
['B3:B9', 'B13:B14', 'A3:A9', 'A13:A14', 'B20:B22', 'A20:A22']
['B5:B9', 'A12:A14', 'B12:B14', 'A17:A18', 'B17:B18', 'A27:A28', 'B27:B28', 'A20:A22', 'B20:B22', 'A3:A4', 'B3:B4', 'A5:A9']
Since I found the merged cell ranges, I need to split the ranges and fill in the corresponding rows like this:
How can I split like this using openpyxl? I am new to using this module. Any feedback is greatly appreciated!
You need to use the unmerge function. Example:
ws.unmerge_cells(start_row=2,start_column=1,end_row=2,end_column=4)
when you use unmerge_cells function, sheet.merged_cells.ranges will be modified， so don't use sheet.merged_cells.ranges in for loop.
from openpyxl.workbook import Workbook
from openpyxl import load_workbook
from openpyxl.utils.cell import range_boundaries
wb = load_workbook(filename = 'tmp.xlsx')
for st_name in wb.sheetnames:
st = wb[st_name]
mcr_coord_list = [mcr.coord for mcr in st.merged_cells.ranges]
for mcr in mcr_coord_list:
min_col, min_row, max_col, max_row = range_boundaries(mcr)
top_left_cell_value = st.cell(row=min_row, column=min_col).value
st.unmerge_cells(mcr)
for row in st.iter_rows(min_col=min_col, min_row=min_row, max_col=max_col, max_row=max_row):
for cell in row:
cell.value = top_left_cell_value
wb.save('merged_tmp.xlsx')
I want to replace the names of the rows in my excel sheet. Whatever the row names may be, I have to replace them with:
Street
City
State
Zip
I am able to read the row names. Can anybody help me with replacing the names I read. Here is my piece of code. Thanks
import xlrd
workbook = xlrd.open_workbook('Path to Excel File')
sheet = workbook.sheet_by_index(0)
print(sheet)
for value in sheet.row_values(0):
print(value)
from openpyxl import load_workbook
wb = load_workbook('filename.xlsx')
ws = wb['sheetname']
ws.cell(row=1,column=1).value = 'Street'
ws.cell(row=1,column=2).value = 'City'
ws.cell(row=1,column=3).value = 'State'
ws.cell(row=1,column=4).value = 'Zip'
wb.save('filename.xlsx')
This question already has answers here:
OpenPyXL + How can I search for content in a cell in Excel, and if the content matches the search criteria update the content?
(2 answers)
Closed 4 years ago.
I would like to use OpenPyXL to search through a workbook, but I'm running into some issues that I'm hoping someone can help with.
Here are a few of the obstacles/to-dos:
I have an unknown number of sheets & cells
I want to search through the workbook and place the sheet names in an array
I want to cycle through each array item and search for cells containing a specific string
I have cells with UNC paths that reference an old server. I need to extract all the text after the server name within the UNC path, update the server name, and contatenate the remaining text back on the server name
e.g. \file-server\blah\blah\blah.xlsx; extract \file-server\; replace with \file-server1\; put remaining blah\blah\blah.xlsx after new name.
Save xlsx document
I'm new to Python, so would someone be able to point me in the right direction? Sample code is appreciated, because all I know how to do at this point is search through a known workbook, with known sheet names, and then print the data. I don't know how to include wildcards when iterating through worksheets & cells.
What I've done to show the contents of the cells:
from openpyxl import load_workbook, worksheet
def main():
#read workbook to get data
wb = load_workbook(filename = 'Book1_test.xlsx', use_iterators = True)
ws = wb.get_sheet_by_name(name = 'Sheet1')
#ws = wb.worksheets
#Iterate through worksheet and print cell contents
for row in ws.iter_rows():
for cell in row:
print cell.value
#Iterate through workbook & print worksheets
#for sheet in wb.worksheets:
# print sheet
if __name__ == '__main__':
main()
-----------------------Update-------------------------
I'm able to search through the cells and extract the server name from the cell, but I I'm not able to save the spreadsheet because I'm in read only mode. When I try to switch to optimized_write=True I get the error:
AttributeError: 'ReadOnlyCell' object has no attribute 'upper'
Here's my code:
from openpyxl import load_workbook, worksheet, Workbook
def main():
#read workbook to get data
wb = load_workbook(filename = 'Book1_test.xlsx', use_iterators = True)
ws = wb.get_sheet_by_name(name = 'Sheet1')
#ws = wb.worksheets
#Iterate through worksheet and print cell contents
for row in ws.iter_rows():
for cell in row:
cellContent = str(cell.value)
#Scans the first 14 characters of the string for the server name
if cellContent[:14] == '\\\\file-server\\':
#open workbook in write mode?
wb = Workbook(optimized_write=True)
ws = wb.create_sheet()
#update cell content
ws[cell] = '\\\\file-server1\\' + cellContent[14:]
print cellContent[:14]
#save workbooks
wb.save('Book1_test.xlsx')
if __name__ == '__main__':
main()
Does anyone know how to update cell contents?
Why don't you read the documentation? If you simply open the workbook with no flags you can edit it.
This is a duplicate of OpenPyXL + How can I search for content in a cell in Excel, and if the content matches the search criteria update the content?
I dont think you can update cell contents. You can open a file to read, or open a new file to write to.
I think you have to create a new workbook, and every cell that you read, if you choose to not modify it, write it out to your new workbook. In your sample code, you are overwriting wb (used to read) with the wb (used to write). Pull it out of the for loop, assign a different name to it.
You can update the content in a cell. You need to assign a value:
workBook = load_workbook('example.xlsx')
sheet = workBook.get_sheet_by_name('sheet')
a = sheet.cell(row=i,column=j)
a.value = 'nuevo valor'
and then save:
workBook.save('example.xlsx')
by rows something like this (as an idea) works:
sheet = wb.create_sheet(index = 1, title = 'Hipster') # name of the obj. sheet
for counter in range(1,11):
sheet['A'+ str(counter)] = 'Hola'
I am able to write into new xlsx workbook using
import xlsxwriter
def write_column(csvlist):
workbook = xlsxwriter.Workbook("filename.xlsx",{'strings_to_numbers': True})
worksheet = workbook.add_worksheet()
row = 0
col = 0
for i in csvlist:
worksheet.write(col,row, i)
col += 1
workbook.close()
but couldn't find the way to write in an existing workbook.
Please help me to write/update cells in existing workbook using xlswriter or any alternative.
Quote from xlsxwriter module documentation:
This module cannot be used to modify or write to an existing Excel
XLSX file.
If you want to modify existing xlsx workbook, consider using openpyxl module.
See also:
Modify an existing Excel file using Openpyxl in Python
Use openpyxl to edit a Excel2007 file (.xlsx) without changing its own styles?
you can use this code to open (test.xlsx) file and modify A1 cell and then save it with a new name
import openpyxl
xfile = openpyxl.load_workbook('test.xlsx')
sheet = xfile.get_sheet_by_name('Sheet1')
sheet['A1'] = 'hello world'
xfile.save('text2.xlsx')
Note that openpyxl does not have a large toolbox for manipulating and editing images. Xlsxwriter has methods for images, but on the other hand cannot import existing worksheets...
I have found that this works for rows...
I'm sure there's a way to do it for columns...
import openpyxl
oxl = openpyxl.load_workbook('File Loction Here')
xl = oxl.['SheetName']
x=0
col = "A"
row = x
while (row <= 100):
y = str(row)
cell = col + row
xl[cell] = x
row = row + 1
x = x + 1
You can do by xlwings as well
import xlwings as xw
for book in xlwings.books:
print(book)
If you have issue with writing into an existing xls file because it is already created you need to put checking part like below:
PATH='filename.xlsx'
if os.path.isfile(PATH):
print "File exists and will be overwrite NOW"
else:
print "The file is missing, new one is created"
...
and here part with the data you want to add