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Common Office File Extensions & Compatibility

Introduction

File extensions किसी file के type और उसे open करने के लिए required application को indicate करते हैं। MS Office से जुड़े exams में file extensions पर questions बहुत common होते हैं क्योंकि ये basic computer awareness को test करते हैं, जो daily office work में इस्तेमाल होती है।

यह pattern high-frequency और easy scoring माना जाता है, और अक्सर banking तथा insurance exams में direct one-liner questions के रूप में आता है।

Pattern: Common Office File Extensions & Compatibility

Pattern

मुख्य idea यह है कि MS Word, Excel, PowerPoint, और अन्य Office-compatible formats से जुड़े सही file extension को identify किया जाए, साथ ही यह समझा जाए कि कौन-सा application उन्हें open कर सकता है।

Step-by-Step Example

Question

निम्न में से कौन-सा file extension मुख्य रूप से MS Excel से जुड़ा है?

  • A. .docx
  • B. .pptx
  • C. .xlsx
  • D. .txt

Solution

  1. Step 1: Application पहचानें

    सवाल MS Excel द्वारा इस्तेमाल किए जाने वाले file extension के बारे में है।

  2. Step 2: Common Office extensions याद करें

    • .docx → MS Word document
    • .pptx → MS PowerPoint presentation
    • .xlsx → MS Excel workbook
    • .txt → plain text file

  3. Step 3: Correct extension match करें

    MS Excel files को .xlsx extension के साथ save किया जाता है।

  4. Final Answer:

    .xlsx → Option C

  5. Quick Check:

    .xlsx file open करने पर by default MS Excel launch हो जाता है ✅

Quick Variations

• MS Word document → .doc / .docx

• MS PowerPoint presentation → .ppt / .pptx

• Excel-compatible data file → .csv

• Plain text file → .txt

Trick to Always Use

  • Step 1 → सबसे पहले question में बताए गए application name को पहचानें।
  • Step 2 → Application को extension से map करें:
    • Word → .docx
    • Excel → .xlsx
    • PowerPoint → .pptx
    • Data exchange → .csv

Summary

Summary

  • File extensions यह बताते हैं कि file किस application में open होगी।
  • .docx, .xlsx, और .pptx standard MS Office formats हैं।
  • .csv files Excel-compatible होती हैं और data exchange के लिए उपयोग होती हैं।
  • Extension-based questions exams में direct और high-frequency होते हैं।

याद रखने का example:
Word → .docx | Excel → .xlsx | PowerPoint → .pptx

Practice

(1/5)
1. Which file extension is used for saving an MS Word document in the newer Office versions?
easy
A. .docx
B. .xlsx
C. .pptx
D. .txt

Solution

  1. Step 1: Identify the application

    The question asks about MS Word.

  2. Step 2: Recall Word file formats

    Modern versions of MS Word save files as .docx.

  3. Final Answer:

    .docx → Option A.

  4. Quick Check:

    Double-clicking a .docx file opens MS Word by default ✅
Hint: Word document = .docx.
Common Mistakes: Confusing .docx with Excel or PowerPoint extensions.
2. Which of the following file extensions is primarily associated with MS PowerPoint?
easy
A. .xlsx
B. .pptx
C. .docx
D. .csv

Solution

  1. Step 1: Identify the application

    The question refers to MS PowerPoint.

  2. Step 2: Recall presentation file formats

    PowerPoint presentations are saved as .pptx.

  3. Final Answer:

    .pptx → Option B.

  4. Quick Check:

    .pptx files open directly in MS PowerPoint ✅
Hint: Presentation file = .pptx.
Common Mistakes: Choosing .xlsx which belongs to Excel.
3. Which file format is commonly used to store spreadsheet data in a text-based, Excel-compatible form?
easy
A. .ppt
B. .doc
C. .csv
D. .pdf

Solution

  1. Step 1: Identify the requirement

    The file should be text-based and Excel-compatible.

  2. Step 2: Recall data exchange formats

    .csv stores data using comma-separated values.

  3. Final Answer:

    .csv → Option C.

  4. Quick Check:

    .csv files open easily in MS Excel for data analysis ✅
Hint: Data exchange with Excel = .csv.
Common Mistakes: Assuming .pdf files are editable spreadsheets.
4. Which file extension represents a plain text file that can be opened by MS Word and Notepad?
medium
A. .docx
B. .pptx
C. .xlsx
D. .txt

Solution

  1. Step 1: Identify the file type

    The file contains only plain text.

  2. Step 2: Recall text file formats

    .txt files store unformatted text.

  3. Final Answer:

    .txt → Option D.

  4. Quick Check:

    .txt files open in Notepad and MS Word without formatting ✅
Hint: Plain text file = .txt.
Common Mistakes: Expecting formatting in a .txt file.
5. Which MS Office application primarily opens files with the extension .xls?
medium
A. MS Excel
B. MS Word
C. MS PowerPoint
D. MS Access

Solution

  1. Step 1: Identify the extension

    The extension given is .xls.

  2. Step 2: Recall older Office formats

    .xls is the older Excel workbook format.

  3. Final Answer:

    MS Excel → Option A.

  4. Quick Check:

    Opening an .xls file launches MS Excel automatically ✅
Hint: Old Excel format = .xls.
Common Mistakes: Assuming .xls is a Word document.

Mock Test

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