Accessing My Files on an External Hard Drive

I have an Aluratek External Hard Drive that I used to back up my files on my old PC. I have some files (Word Documents, Excel Spreadsheets, MP3s) that I would like to access on it however my iMac does not recognize the external drive.

I did check out the manual online:
http://www.aluratek.com/downloads/ACDUES350F_Manual.pdf

It does give instructions to make it accessible for Apple Products. However, I think I would have to reformat the entire drive before doing so.

My question, is there a way to access these files on my external HD without reformatting it first?

What mac are you using, is it a laptop?

The Mac can read and write FAT32 drives and read Windows NTFS drives, so the Mac recognising the drive should not be a problem.

Have you tried it with the drive's power adaptor attached, there may not enough juice from the USB port to power the drive

It worked after plugging the extra power adaptor. Thank you!