Hey everyone! I'm quite new to Python and I'm working on a project where I need to manage an existing Excel spreadsheet. This spreadsheet contains several sheets, and I want to add 7 pandas pivot tables side by side along with some formatted text. The issue I'm facing is that while my code successfully replaces data on the existing sheet, it only appends the first pivot table listed. When I try using mode 'w', it deletes the other sheets, which is a big no-no!
I attempted to concatenate the pivot tables into one DataFrame with spaces in between using pd.concat, but that led to missing columns and didn't display the full lengths of the tables. I've been stuck on this for about a week, and I would really appreciate any advice you can share. Thank you!
Here's a snippet of my code:
file_path = "file_path.xlsx"
with pd.ExcelWriter(file_path, engine='openpyxl', mode='a', if_sheet_exists='replace'):
pivot_table1.to_excel(writer, sheet_name="Tables", startrow=4, startcol=5, header=True)
pivot_table2.to_excel(writer, sheet_name="Tables", startrow=4, startcol=10, header=True)
workbook = writer.book
sheet = workbook['Tables']
sheet['A1'].value = "My Title"
writer.close()
3 Answers
It sounds like you're trying to squeeze multiple tables into one Excel sheet, which can be tricky! If your tables share a similar structure, concatenating them into a super-table could be a solution. But if they don’t match, it might be harder to get them aligned correctly.
Consider the underlying logic of how Excel handles cells: as the first table expands, it could push the second one out of position! You might want to think about why you’re forcing side-by-side tables. Would your audience be okay with a different layout? Sometimes, charts or separate sheets work better to present data clearly.
If your audience insists on seeing things side by side, sometimes just creating two separate tables on the same sheet might be sufficient! Try placing one table above the other rather than side by side and see if that works better for readability without risking layout issues.
One way to preserve your existing sheets is to keep the mode set to 'a' for appending and use a specific sheet name. Make sure you're not replacing the entire sheet but instead just updating the sections where the tables should go. Also, check the cell references closely to avoid overlaps.
Lastly, maybe try using openpyxl directly when placing your tables if you're still running into issues—it gives you more control over the cell placement!
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