How to transfer a document from my personal email to my work email to avoid duplicate work

Ok so 1. Any risks if I login my personal email on work laptop through incognito? Just don't want anyone accessing my email as it has possible proof that I am OE 2. Only reason I wanna do this is because there's a file I created for my J1 that I wanna reuse for my J2. It's not proprietary information, it's my own work and I don't want to duplicate the efforts lol 3. Is it better to send the file as an email from my personal to work email, then deleting it right away?

My J2 manager is a pos and I don't trust them which is why I'm being extra cautiou

Wanna do this without getting caught.