Pandas ExcelWriter deletes all formulas - python

I'm trying to append some information to an excel using pandas.
My excel has several sheets, most of them with formulas.
I'm only trying to replace the cells from a specific sheet sheet2.
Function:
def write():
df = pd.read_excel(path, "sheet2")
df.loc['A','B'] = 10
with pd.ExcelWriter(path, engine="openpyxl", mode="a", if_sheet_exists="replace") as writer:
df.to_excel(writer, sheet_name="sheet2")
The problem
The sheet cell values get replaced BUT in other sheets the cells with formulas are empty.
When opening the excel itself in protected view they are empty, but when editing they reappear.
Help.

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# writing first df to the file
path_to_file = '/master_file.xslx'
raw_data_df.to_excel(path_to_file, sheet_name='raw_data', index=False)
# writing second df to same file in a different sheet
# this sheet should have data validation
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writer.close()
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excelbook = test.xlsx
book = load_workbook(excelbook)
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writer.book = book
df.to_excel(writer, sheet_name = 'apple', startcol=5, startrow=0)
writer.save()
writer.close()
Problem with my code is, each time I run it to write a dataframe, it is creating a new sheet in the excel file. For example, if the sheet name I need is "apple", then since I'm running this piece of code 3 times (to write 3 dataframes to the same sheet), it is creating a new sheet each time and naming them as - "apple1", "apple2" and "apple3"
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Python : How to write on existing xlsx without overwrite other columns

I just want to overwrite certain column base on my dataframe. Suppose df2 is my dataframe.
Below is the code i use. The problem is its overwrite the other columns and row even though i code it to start on columns 80.
I want its overwrite on column 80 and beyond only, but not before the column 80. 80 is index, not name.
import pandas as pd
import xlsxwriter
df2 = pd.read_excel(r'C:\Users\RUI LEONHART\Google Drive\Shop\STOCK V2.xlsx',
usecols=['XS1','S1','M1','L1','XL1','XXL1'])
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df2.to_excel(writer, sheet_name='Sheet1', startcol=80)
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I search around the solution. The closest one is this
python: update dataframe to existing excel sheet without overwriting contents on the same sheet and other sheets
but still overwrite the columns and row that i dont want.

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I tried using data.to_excel like:
writer = pd.ExcelWriter(r'path\TestBook.xlsm')
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writer.save()
The problem is that this way i overwrite the entire sheet.
Is there a way to only add the dataframe? It would be perfect if I could also keep the format of the destination cells.
Thanks
I found a good solution for it. Xlwings natuarally supports pandas dataframe:
https://docs.xlwings.org/en/stable/datastructures.html#pandas-dataframes
The to_excel function provides a mode parameter to insert (w) of append (a) a data frame into an excel sheet, see below example:
with pd.ExcelWriter(p_file_name, mode='a') as writer:
df.to_excel(writer, sheet_name='Data', startrow=2, startcol=2)

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