The best alternatives to OLM Converter are Fossils app, MacFly Pro, and Carpet. If these 3 options don't work for you, we've listed a few more alternatives below.
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Fossils helps you clean up old and unused files from your computer. Quickly browse through your old stuff and preview the file’s contents. Decide if you want to archive or delete using easy to use keyboard shortcuts.
Reclaim free storage space and get your Mac to perform up to scratch. From corrupted cache to duplicate files and everything in between, MacFly Pro improves Mac maintenance and saves hours of manual storage cleaning.
The silliest (yet easiest!) way to keep your valuable files & enjoy a tidy desktop. It's simply a folder. Just sweep all your desktop mess under it. Don't need to go over old files, screenshots, downloads... One simple drag&drop and your'e "clean". Have fun!
Sysinfo OLM to PST Converter is the best utility to convert Mac OLM files to PST format. It exports all OLM files objects like email messages, calendars, contacts, journals, tasks, etc. Additionally, it also converts corrupt Mac Outlook OLM files to PST.