Yes - you just need to have Endpoint Encryption for Files/Folders installed onto your new laptop. That's the only way.
Do i need to have the same Endpoint Encryption for Files/Folders like in my previous laptop ? or can i just download a trial version to decrypt?
Also while playing around with the encrypted file i noticed that the file name was ending with a special character. I deleted that special character from the file name to check if the file opens. Can this cause any issues?
Yes, deleting the special char means that EEFF will no longer recognise the file - you need to put that back.
No, you can't open that file just by installing EEFF - you need access to your companys environment (for the encryption keys).
The best thing to do would be to talk to your IT department and get EEFF properly installed on your new PC.