Computer Shortcut – सामान्य शॉर्टकट्स 
🔹 Ctrl + C → Copy 
🔹 Ctrl + V → Paste 
🔹 Ctrl + X → Cut 
🔹 Ctrl + S → Save
🔹 Ctrl + P → Print
🔹 Ctrl + Z → Undo
🔹 Ctrl + Y → Redo 
🔹 Ctrl + N → New Document
🔹 Ctrl + O → Open File 
🔹 Ctrl + A → Select All 
🔹 Ctrl + F → Find 
🔹 Ctrl + H → Replace 
🔹 Ctrl + U → Underline
🔹 Ctrl + I → Italic 
🔹 Ctrl + B → Bold
🔹 Alt + Tab → Switch Between Windows 
🔹 Alt + F4 → Close Window 
🔹 Windows + L → Lock Screen 
🔹 Windows + D → Show Desktop 
🔹 F1 → Help 
🔹 F2 → Rename 
🔹 F5 → Refresh 
🔹 F12 → Save As 

फ़ाइल एक्सटेंशन -File Extensions 
 .docx → MS Word Document (MP Patwari 2017)
.xlsx → MS Excel File (UPPSC 2021)
.pptx → MS PowerPoint (SSC CHSL 2023)
.txt → Text File (UPSI 2021)
.pdf → Portable Document Format (SSC CGL 2023)
.html / .htm → Web Page (Delhi Police 2020)
.zip / .rar → Compressed File (UPPSC 2021)
.exe → Executable File (UPSI 2021)
.jpg / .jpeg / .png → Image File (MP Group-2 2018)
.mp3 / .wav → Audio File (SSC JE 2023)
.mp4 / .avi / .mkv → Video File (Railway 2019)
.csv → Comma Separated Values (SSC CGL 2022)
.bak → Backup File (UPSC 2022)
.dll → Dynamic Link Library (SSC JE 2021)
.bat → Batch File (UP Police 2019)
.iso → Disk Image File (UPPSC 2022)
.dat → Data File (SSC GD 2023)

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