Data validation in Excel is a powerful feature that allows you to control the type and range of data that can be entered into a cell or a range of cells. The main goal of data validation is to prevent errors and inconsistencies in data, which can lead to inaccurate analysis, reporting, and decision-making. Data validation helps ensure data accuracy by setting specific criteria for data entry. In this article, you will learn how to add or remove data validation in Excel in Python using Spire.XLS for Python.

• Add Various Types of Data Validation to Excel in Python
• Remove Data Validation from Excel in Python

Install Spire.XLS for Python

This scenario requires Spire.XLS for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.XLS

If you are unsure how to install, please refer to this tutorial: How to Install Spire.XLS for Python on Windows

Add Various Types of Data Validation to Excel in Python

Spire.XLS for Python provides the DataValidation class to handle data validation in a specific cell or range. Through the properties under the DataValidation object, you can specify validation type, formula, compare operator, etc. The following are the steps to add data validation to an Excel cell using Spire.XLS for Python.

• Create a Workbook object.
• Get a specific worksheet through Workbook.Worksheets[index] property.
• Get a specific cell through Worksheet.Range property.
• Set the data validation type, formula, compare operator and other related attributes through the properties under CellRarange.DataValidation object.
• Save the workbook to another Excel file using Workbook.SaveToFile() method.

from spire.xls import *
from spire.xls.common import *

# Create a Workbook object
workbook = Workbook()

# Get the first worksheet
sheet = workbook.Worksheets[0]

# Insert text in cells
sheet.Range["B2"].Text = "Number Validation:"
sheet.Range["B4"].Text = "Date Validation:"
sheet.Range["B6"].Text = "Text Length Validation:"
sheet.Range["B8"].Text = "List Validation:"
sheet.Range["B10"].Text = "Time Validation:"

# Add number validation to C2
rangeNumber = sheet.Range["C2"]
rangeNumber.DataValidation.AllowType = CellDataType.Integer
rangeNumber.DataValidation.CompareOperator = ValidationComparisonOperator.Between
rangeNumber.DataValidation.Formula1 = "1"
rangeNumber.DataValidation.Formula2 = "10"
rangeNumber.DataValidation.InputMessage = "Enter a number between 1 and 10"
rangeNumber.Style.KnownColor = ExcelColors.Gray25Percent

# Add date validation to C4
rangeDate = sheet.Range["C4"]
rangeDate.DataValidation.AllowType = CellDataType.Date
rangeDate.DataValidation.CompareOperator = ValidationComparisonOperator.Between
rangeDate.DataValidation.Formula1 = "01/01/2022"
rangeDate.DataValidation.Formula2 = "31/12/2022"
rangeDate.DataValidation.InputMessage = "Enter a date between 01/01/2022 and 31/12/2022"
rangeDate.Style.KnownColor = ExcelColors.Gray25Percent

# Add text length validation to C6
rangeTextLength = sheet.Range["C6"]
rangeTextLength.DataValidation.AllowType = CellDataType.TextLength
rangeTextLength.DataValidation.CompareOperator = ValidationComparisonOperator.LessOrEqual
rangeTextLength.DataValidation.Formula1 = "5"
rangeTextLength.DataValidation.InputMessage = "Enter text lesser than 5 characters"
rangeTextLength.Style.KnownColor = ExcelColors.Gray25Percent

# Apply list validation to C8
rangeList = sheet.Range["C8"]
rangeList.DataValidation.Values = ["United States", "Canada", "United Kingdom", "Germany"]
rangeList.DataValidation.IsSuppressDropDownArrow = False
rangeList.DataValidation.InputMessage = "Choose an item from the list"
rangeList.Style.KnownColor = ExcelColors.Gray25Percent

# Apply time validation to C10
rangeTime = sheet.Range["C10"]
rangeTime.DataValidation.AllowType = CellDataType.Time
rangeTime.DataValidation.CompareOperator = ValidationComparisonOperator.Between
rangeTime.DataValidation.Formula1 = "9:00"
rangeTime.DataValidation.Formula2 = "12:00"
rangeTime.DataValidation.InputMessage = "Enter a time between 9:00 and 12:00"
rangeTime.Style.KnownColor = ExcelColors.Gray25Percent

# Auto fit width of column 2
sheet.AutoFitColumn(2)

# Set the width of column 3
sheet.Columns[2].ColumnWidth = 20

# Save to file
workbook.SaveToFile("output/DataValidation.xlsx", ExcelVersion.Version2016)

Remove Data Validation from Excel in Python

To remove the data validation from an Excel worksheet, use the Worksheet.DVTable.Remove(list rectangles) method. The parameter list specifies the cells to remove validation. The following are the detailed steps.

• Create a Workbook object.
• Load the Excel file containing data validation using Workbook.LoadFromFile() method.
• Get the specified worksheet though Workbook.Worksheets[index] property.
• Create a list of rectangles, which is used to specify the cells where the validation will be removed.
• Remove the data validation from the selected cells using Worksheet.DVTable.Remove() method.
• Save the workbook to another Excel file using Workbook.SaveToFile() method.

from spire.xls import *
from spire.xls.common import *

# Create a Workbook object
workbook = Workbook()

# Load a sample Excel file
workbook.LoadFromFile("C:\\Users\\Administrator\\Desktop\\DataValidation.xlsx")

# Get the first worksheet
worksheet = workbook.Worksheets[0]

# Create a list of rectangles to specify the cells or cell ranges where the data validation will be removed
rects= []
rects.append(Rectangle.FromLTRB(0,0,2,9))
         
# Remove the data validation from the selected cells
worksheet.DVTable.Remove(rects)

# Save the workbook to an Excel file
workbook.SaveToFile("output/RemoveDataValidation.xlsx")

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

Speaker notes in PowerPoint play a crucial role in enhancing the presenter's delivery and ensuring a seamless presentation experience. They can be added to individual slides to provide valuable guidance, reminders, and supplementary information for the presenter. Unlike the content displayed on the slides, speaker notes are typically not visible to the audience during the actual presentation. In this article, we'll explain how to add, read or delete speaker notes in a PowerPoint presentation in Python using Spire.Presentation for Python.

• Add Speaker Notes to PowerPoint in Python
• Read Speaker Notes in PowerPoint in Python
• Delete Speaker Notes from PowerPoint in Python

Install Spire.Presentation for Python

This scenario requires Spire.Presentation for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.Presentation

If you are unsure how to install, please refer to this tutorial: How to Install Spire.Presentation for Python on Windows

Add Speaker Notes to PowerPoint in Python

Spire.Presentation for Python provides the ISlide.AddNotesSlides() method to add notes to a PowerPoint slide. The detailed steps are as follows.

• Create a Presentation object.
• Load a PowerPoint presentation using Presentation.LoadFromFile() method.
• Get the slide that you want to add notes to using Presentation.Slides[index] property.
• Add a notes slide to the slide using ISlide.AddNotesSlides() method.
• Create TextParagraph objects and set text for the paragraphs using TextParagraph.Text property, then add the paragraphs to the notes slide using NotesSlide.NotesTextFrame.Paragraphs.Append() method.
• Save the resulting presentation using Presentation.SaveToFile() method.

from spire.presentation.common import *
from spire.presentation import *

# Create a Presentation object
ppt = Presentation()
# Load a PowerPoint presentation
ppt.LoadFromFile("Sample.pptx")

# Get the first slide
slide = ppt.Slides[0]

# Add a notes slide to the slide
notesSlide = slide.AddNotesSlide()

# Add 4 paragraphs to the notes slide
paragraph = TextParagraph()
paragraph.Text = "Tips for making effective presentations:"
notesSlide.NotesTextFrame.Paragraphs.Append(paragraph)

paragraph = TextParagraph()
paragraph.Text = "Use the slide master feature to create a consistent and simple design template."
notesSlide.NotesTextFrame.Paragraphs.Append(paragraph)

paragraph = TextParagraph()
paragraph.Text = "Simplify and limit the number of words on each screen."
notesSlide.NotesTextFrame.Paragraphs.Append(paragraph)

paragraph = TextParagraph()
paragraph.Text = "Use contrasting colors for text and background."
notesSlide.NotesTextFrame.Paragraphs.Append(paragraph)

# Set bullet type and style for specific paragraphs
for i in range(1, notesSlide.NotesTextFrame.Paragraphs.Count):
    notesSlide.NotesTextFrame.Paragraphs[i].BulletType = TextBulletType.Numbered
    notesSlide.NotesTextFrame.Paragraphs[i].BulletStyle = NumberedBulletStyle.BulletArabicPeriod

# Save the resulting presentation
ppt.SaveToFile("AddSpeakerNotes.pptx", FileFormat.Pptx2016)
ppt.Dispose()

Read Speaker Notes in PowerPoint in Python

To read the text content of the notes, you can use the NotesSlide.NotesTextFrame.Text property. The detailed steps are as follows.

• Create a Presentation object.
• Load a PowerPoint presentation using Presentation.LoadFromFile() method.
• Get the slide that you want to read notes from using Presentation.Slides[index] property.
• Get the notes slide of the slide using ISlide.NotesSlide property.
• Get the text content of the notes slide using NotesSlide.NotesTextFrame.Text property.
• Write the text content into a text file.

from spire.presentation.common import *
from spire.presentation import *

# Create a Presentation object
ppt = Presentation()
# Load a PowerPoint presentation
ppt.LoadFromFile("AddSpeakerNotes.pptx")

# Get the first slide
slide = ppt.Slides[0]

# Get the notes slide of the slide
notesSlide = slide.NotesSlide

# Get the text content of the notes slide
notes = notesSlide.NotesTextFrame.Text

# Write the text content to a text file
with open("Notes.txt", 'w') as file:
    file.write(notes)

ppt.Dispose()

Delete Speaker Notes from PowerPoint in Python

You can delete a specific paragraph of note or delete all the notes from a slide using the NotesSlide.NotesTextFrame.Paragraphs.RemoveAt(index) or NotesSlide.NotesTextFrame.Paragraphs.Clear() method. The detailed steps are as follows.

• Create a Presentation object.
• Load a PowerPoint presentation using Presentation.LoadFromFile() method.
• Get the slide that you want to delete notes from using Presentation.Slides[index] property.
• Get the notes slide of the slide using ISlide.NotesSlide property.
• Delete a specific paragraph of note or delete all the notes from the notes slide using the NotesSlide.NotesTextFrame.Paragraphs.RemoveAt(index) or NotesSlide.NotesTextFrame.Paragraphs.Clear() method.
• Save the resulting presentation using Presentation.SaveToFile() method.

from spire.presentation.common import *
from spire.presentation import *

# Create a Presentation object
presentation = Presentation()
# Load a PowerPoint presentation
presentation.LoadFromFile("AddSpeakerNotes.pptx")

# Get the first slide
slide = presentation.Slides[0]

# Get the notes slide of the slide
notesSlide = slide.NotesSlide

# Remove a specific paragraph of note from the notes slide
# notesSlide.NotesTextFrame.Paragraphs.RemoveAt(1)

# Remove all the notes from the notes slide
notesSlide.NotesTextFrame.Paragraphs.Clear()

# Save the resulting presentation
presentation.SaveToFile("DeleteSpeakerNotes.pptx", FileFormat.Pptx2013)
presentation.Dispose()

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

Dealing with a large number of Word documents can be very challenging. Whether it's editing or reviewing a large number of documents, there's a lot of time wasted on opening and closing documents. What's more, sharing and receiving a large number of separate Word documents can be annoying, as it may require a lot of repeated sending and receiving operations by both the sharer and the receiver. Therefore, in order to enhance efficiency and save time, it is advisable to merge related Word documents into a single file. From this article, you will know how to use Spire.Doc for Python to easily merge Word documents through Python programs.

• Merge Word Documents by Inserting Files with Python
• Merge Word Documents by Cloning Contents with Python

Install Spire.Doc for Python

This scenario requires Spire.Doc for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.Doc

If you are unsure how to install, please refer to this tutorial: How to Install Spire.Doc for Python on Windows

Merge Word Documents by Inserting Files with Python

The method Document.insertTextFromFile() is used to insert other Word documents to the current one, and the inserted content will start from a new page. The detailed steps for merging Word documents by inserting are as follows:

• Create an object of Document class and load a Word document using Document.LoadFromFile() method.
• Insert the content from another document to it using Document.InsertTextFromFile() method.
• Save the document using Document.SaveToFile() method.

from spire.doc import *
from spire.doc.common import *

# Create an object of Document class and load a Word document
doc = Document()
doc.LoadFromFile("Sample1.docx")

# Insert the content from another Word document to this one
doc.InsertTextFromFile("Sample2.docx", FileFormat.Auto)

# Save the document
doc.SaveToFile("output/InsertDocuments.docx")
doc.Close()

Merge Word Documents by Cloning Contents with Python

Merging Word documents can also be achieved by cloning contents from one Word document to another. This method maintains the formatting of the original document, and content cloned from another document continues at the end of the current document without starting a new Page. The detailed steps are as follows:

• Create two objects of Document class and load two Word documents using Document.LoadFromFile() method.
• Get the last section of the destination document using Document.Sections.get_Item() method.
• Loop through the sections in the document to be cloned and then loop through the child objects of the sections.
• Get a section child object using Section.Body.ChildObjects.get_Item() method.
• Add the child object to the last section of the destination document using Section.Body.ChildObjects.Add() method.
• Save the result document using Document.SaveToFile() method.

from spire.doc import *
from spire.doc.common import *

# Create two objects of Document class and load two Word documents
doc1 = Document()
doc1.LoadFromFile("Sample1.docx")
doc2 = Document()
doc2.LoadFromFile("Sample2.docx")

# Get the last section of the first document
lastSection = doc1.Sections.get_Item(doc1.Sections.Count - 1)

# Loop through the sections in the second document
for i in range(doc2.Sections.Count):
    section = doc2.Sections.get_Item(i)
    # Loop through the child objects in the sections
    for j in range(section.Body.ChildObjects.Count):
        obj = section.Body.ChildObjects.get_Item(j)
        # Add the child objects from the second document to the last section of the first document
        lastSection.Body.ChildObjects.Add(obj.Clone())

# Save the result document
doc1.SaveToFile("output/MergeByCloning.docx")
doc1.Close()
doc2.Close()

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.