question: abruptly pulling out of the sd card from the card reader or from the camera is not advisable.
Capitalize this past sentence correctly.
A: Abruptly pulling out of the SD card from the card reader or from the camera is not advisable.

question: step 2: browse to select unreadable rar file and click on "repair" button as shown in figure b.
Capitalize this past sentence correctly.
A: Step 2: Browse to select unreadable RAR file and click on "Repair" button as shown in Figure B.

question: while the output is rather low right now — there are a good dozen or so extensions available on the official store — extensions will make edge more usable and attractive in the long run.
Capitalize this past sentence correctly.
A: While the output is rather low right now — there are a good dozen or so extensions available on the official store — extensions will make Edge more usable and attractive in the long run.