Need to convert a TWRP .img file into a .zip installer for CWM

I scrub up my BQ Edison 2 doing ****.

Now I only can use CWM.

I didn't found a rom that installs from CWM... I found some in TWRP also I got the TWRP file that fits for my tablet., the problem is that it is in .img format, and I only can install from zip.

So I beg to a mercy soul that help me, I need a .zip installer from a BQ Edison 2 Rom, or from TWRP .img file so I can swap recoveries.

Thanks in advance!!!!!

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