Stellar Converter for OLM is a Windows desktop utility that converts Outlook for Mac OLM archives into Outlook PST files, with other export options depending on edition. Stellar says it preserves mailbox structure and data, but those are vendor claims—not independently verified lossless-conversion results. The practical question is whether the trial and a carefully checked output are enough for your archive and destination.
What Stellar Converter for OLM does
OLM is Outlook for Mac’s archive format; PST is a common Outlook data-file format. Stellar describes its Windows application as a way to scan an OLM file, preview mailbox contents, and export them. Its product page lists emails, attachments, contacts, calendars, tasks, and notes, and says the original folder hierarchy and mail settings are retained. Treat that preservation language as Stellar’s description of the product, not proof that every item in every archive will convert without loss.
As an Amazon Associate I earn from qualifying purchases.
Stellar lists PST, MSG, and EML output for the Standard desktop edition. Its Technician edition adds PDF, HTML, and RTF output as well as direct export to Microsoft 365. The online converter is a separate service and is presented as PST-only. Check Stellar’s product details and edition descriptions for current availability; formats and edition terms can change.
What the trial lets you verify
According to Stellar, the desktop trial previews converted items, but saving converted data requires a paid license. A preview can help you check whether the archive is recognized and whether representative content appears. It cannot establish that a complete PST has been saved correctly or that the intended Outlook installation can use it.
#1 Best Overall
- AUDIO ALL-ROUNDER – convert your audio or video files into almost any audio format - edit, trim, merge, adjust sample and bit rate, extract audio from videos
- Supported input formats - MP3, MP2, AAC, AC3, WAV, WMA, M4A, RM, RAM, OGG, AU, AIF, AIFF, PG, MPEG, MPEG 2, MP4, M4V, MJPG, MJPEG, HD TS, HD MTS, HD M2TS, HD MPG, HD MPEG, HD MP4, HD WMV, QuickTime HD MOV and others
- Supported output formats - AAC, AC3, AIFF, AMR, AU, FLAC, M4A, MKA, MP2, MP3, OGG, WAV, WMA
- EASY TO INSTALL AND USE - user-friendly and intuitive interface, free tech support whenever you need assistance
- compatible with Windows 10, 8 and 7 (32 and 64-bit versions) - single user license
The product page does not provide a named, dated conversion success rate, controlled benchmark, sample size, or method supporting a “without data loss” guarantee. There is therefore no independent basis here to call the conversion lossless. Judge a specific conversion by checking the saved result in the environment where you plan to use it.
How the desktop conversion workflow is described
Stellar’s illustrated workflow is to locate or browse to an OLM file, scan it, preview mailbox components, choose an output and destination, and save. The desktop interface also shows options to save mailboxes as separate PST files or as one PST. See the workflow screenshots for the vendor’s current depiction.
Rank #2
![Roxio Easy VHS to DVD 3 Plus | VHS, Hi8, V8 Video to DVD or Digital Converter | Amazon Exclusive 2 Bonus DVDs [Windows Disc]](https://m.media-amazon.com/images/I/51UBEF6uzZL._SL160_.jpg)
- Convert your VHS tapes to DVD or digital to enhance and preserve your home movies
- Capture analog video directly from your camcorder or VCR and burn to DVD or convert to popular digital formats to share freely across devices
- Trim video, make quick edits, enhance color, add transitions, reduce noise and stabilize old footage to breathe new life into your old videos
- Complete your video experience by selecting from creative, customizable DVD menu templates, or creating personalized disc labels
- Get 2 DVDs for your first projects: An Amazon exclusive extra
A safer way to evaluate your archive
- Protect the source. Keep an untouched copy of the OLM file and work from another copy. Do not make the only archive your test file.
- Record what you are evaluating. Note the installed product version and edition so you know which features and output options were available.
- Inspect a representative preview. Look at more than one folder and item type, including older and newer mail, attachments, contacts, and calendar items where present. A preview is an inspection aid, not confirmation of a saved PST.
- Save to a new destination. Avoid overwriting the source or an existing mailbox data file. Choose a single PST or separate PSTs according to how you intend to organize the archive.
- Open or import the output in its intended Outlook environment. Check important folders and date ranges, open sample messages and attachments, and verify contacts and calendar entries that matter to you.
- Keep the OLM backup until validation is complete. Retain it separately until you have confirmed the converted data works where you need it.
These are prudent validation steps, not reported test results for Stellar. The destination matters: a PST that was created is not necessarily a PST that has been checked in the Outlook setup you will rely on.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Desktop software or online conversion?
The online service has its own limits and handling terms; do not apply them to the desktop program. Stellar’s online page states that the free option accepts one OLM file up to 100 MB, while a paid option accepts five files of up to 5 GB each. The same page says uploaded and converted files are automatically deleted after 24 hours. These are vendor-stated terms, not an independent audit of deletion.
Rank #3
- Audio Cassette to Digital Converter: Quickly convert old cassette tape to digital audio files, WAV MP3 WMA or others, with our cassette tape converter, which allows you to enjoy the music by the latest digital audio player with even the oldest bands.
- Cassette Tape to Computer Converter: Our cassette to digital converter can be powered by a USB type-c port, making it easy to connect to your PC or MAC (QuickTime is recommended), and save WAV MP3 WMA or other audio files directly onto your computer.
- Cassette Tape Player Converter with Speaker: Enjoy a tape music without a earphone. Other hand, with a built-in 3.5mm earphone jack, our cassette tape player converter works perfectly as an old school, vintage cassette player with standard headphones, providing a versatile design perfectly suited for any occasion.
- Small size and lightweight: Powered by 2pcs AA batteries also, our cassette tape digital converter is a sleek, convenient tool that you can take with you anywhere, whether you're traveling, shopping or just enjoying your music at home. Note: do NOT insert AA batteries when using the USB Type-C port.
- A great partner with cassette tapes, save your important tape music or voice to WAV MP3 WMA or other audio files, do not worry about the unexpected damage of the weak tapes.
Because online conversion involves uploading the archive, consider whether its contents are suitable for that handling model and read the current privacy terms before using it. A desktop application and an upload-based service differ in where the data is processed, their stated limits, and available outputs. Confirm the current terms on Stellar’s online converter page.
System requirements and version details
At the time listed on Stellar’s product page, the desktop application was version 6.0.0.0, dated January 2026. The page specifies a 64-bit Intel-compatible processor, at least 4 GB of memory (8 GB recommended), 250 MB of free disk space, and Windows 11, 10, 8.1, or 8. These are time-sensitive vendor specifications; verify the current installer’s supported Windows versions and requirements before installing. Stellar’s installation guide may also help with setup.
Rank #4
- [Easy to use & Simple Settings]Connect the optical or coaxial cable to the signal source and converter, and then connect the or 3.5mm audio cable to the output device and converter. Please set the audio format to uncompressed 2-channel LPCM or PCM in your TV or other source devices. (Note: 5.1 channel is incompatible, please set the audio output to PCM or LPCM: Setting-Sound-Audio Format-PCM/LPCM)
- [Digital to Analog Audio Converter] to convert coaxial or digital optical audio input to analog stereo L/R and 3.5mm audio signal output. Make sure to change the audio output format to PCM or LPCM. (NOTE: It is only a Digital to Analog Audio Converter, not an Analog to Digital Audio Adapter, input and output cannot be reversed.)
- [Wide Compatibility]This audio converter is compatible with devices with coaxial or toslink digital output, easy to install and simple to operate, no need to install any driver. Powered by USB Cable. Can be Used for , , TV, , Blu-ray Player, HD DVD, Home Cinema Systems, AV Amps, etc.
- [Support Multiple Sampling Rates]Supports Sampling Rate at 32KHz, 44.1KHz, 48KHz and 96KHz; 24-bit S/ PDIF Incoming Bit Stream on Left and Right Channels. Support speakers and headphones play simultaneously. Built-in interference immunity and no signal input squelch circuit, provides crystal clear electromagnetic noise-free transmission. (NOTE: Do not support 192kHz sample rate audio)
- [ Quality]Heavy-duty aluminum alloy enclosure protects the insides and keeps the unit cool by aiding in quick heat absorption and dissipation.
Who should consider it—and what to check first
- It may fit: someone with an OLM archive who needs a Windows-based conversion workflow and a PST destination, or an edition-specific alternative such as MSG or EML.
- Check the edition: PDF, HTML, RTF, and direct Microsoft 365 export are listed for Technician, not the Standard desktop edition.
- Check trial limits: the desktop trial is described as preview-only for converted items; saving requires a license.
- Check privacy and file limits: online conversion has separate upload limits and a stated 24-hour deletion period.
- Check your own result: no vendor feature list can substitute for opening and validating the saved output in the destination you intend to use.
For current edition and purchase information, consult Stellar’s purchase page; verify the version, operating-system support, and terms at the time you decide.
Quick Recap
Best Value
- 【12-Bit Precision DAC Module】12-bit resolution; 4096-level output; rail-to-rail voltage output from 0V to VDD; Suitable for audio signal generation and sensor calibration.
- 【I2C Interface Compatibility】I2C digital communication; supports 100kHz, 400kHz, and 3.4MHz modes; compatible with for Arduino, for Raspberry Pi, and STM32 microcontrollers.
- 【Low Power Consumption】0.4mA normal mode; 60nA standby mode; built-in EEPROM stores last settings; suitable for battery-powered portable devices.
- 【Industrial Temperature Range】Operates from -40°C to +125°C; wide voltage input 2.7V to 5.5V; no external amplifier required for loads up to 25mA.
- 【Easy Setup and Reliable Performance】Address configurable via A0 pin; multi-module parallel connection supported; includes pull-up resistors for SCL and SDA lines; not for high-voltage (>50V) systems.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
