How to update existing excel work sheets? - python

I have an existing excel workbook with 6 sheets in it named Z_df_pca, Z_df_kpca, Z_df_ae, Y_pred_pca, Y_pred_kpca and Y_pred_ae. Imagine these sheets to be full of data obtained from my some simulation.
I want python to revise or update one of these sheets with following conditions:
Other sheets should not be affected.
Should not create copies of sheets or the workbook. Example: instead of updating Z_df_pca, creates Z_df_pca-1 and so on.
Whats the simplest way I can write to these 6 sheets given that I have a dataframe as an output to be written?

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How to make python read multiple sheets on an excel file one by one

Stackoverflow
Hi python noob here.
I been learning python for couple of weeks so I don’t know if this is possible or even super easy.
I have an excel files with o lot of sheets, I have managed to create a python code that do all the changes I need to make on a single sheet and then saves it.
I just need to type the sheet name run it then type another sheet name and run it again etc …
Is there a way to make the code so it does all the sheets one by one when I run it?
I was thinking about creating a list with all the sheets name and using a loop but not sure how… thank you.
Use openpyxl module.
You have the list of sheets in openpyxl object, so you can run over sheets as by list.
You could find the solutions of similar problem here:
getting sheet names from openpyxl

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Using Python (and DataNitro) to copy cells from a particular sheet in one Excel workbook, to a particular sheet in another Excel workbook

I do a lot of data analysis in Excel and have been exploring Python and DataNitro to streamline my workflow. I specifically am trying to copy certain cells from one sheet in one Excel workbook, and paste them into certain cells in a certain sheet in another Excel workbook.
I have been storing ("copying") using CellRange (DataNitro), but am not sure how to copy the stored contents into a particular sheet, in another Excel workbook. Any clue how I may go about this? Also, is it possible to make the range defined for a CellRange conditional on certain cell properties?
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Here's an example of copying:
data = CellRange("A1:A10").value
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You can make the range conditional using regular Python logic (if statements, etc.).

How to persist Excel References in formulas across worksheets where the worksheet is blank?

Is it possible in Excel to create a template with formula to other named empty sheets such that the references to the cells always remain and don't end up like this?
='Data'!#REF!
I am using python, pandas and openpyxl to populate multiple named worksheets with various pandas dataframes. The 1st, 2nd and 3rd sheets are templates with references to the other worksheets.
Why is this required : If I have data in the template of say 10 rows and write a dataframe of 5 rows the remaining 5 existing rows remain.
It might be possible to clear the target sheet before the to_excel but I think this may force the links to break.
I've looked at this How to preserve a formula's reference to a worksheet when the worksheet is deleted and replaced? but it seems quite tedious to have to create another indirect reference.
This was solved using Named Ranges.

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