eSoftTools

OST to ICS Converter Tool

Superlative program to transfer calendar events from Outlook's OST file to ICS (.ics). Move Outlook Calendar to ICS files for using with supported calendar management tools. Complete calendar export operation swiftly without errors. Get advanced features to get best results with easy process.

Convert OST to ICS and Export/Save Calendar Events data.
Convert Single or Multiple OST file in single operation.
Save Calendar in ICS in 2 modes- Each Calendar in Separate ICS or All Calendar in one ICS file.
Export Calendar with every relevant properties - Date, Time, Title, Notes, Attendees, etc.
Directly opening OST files and Calendar Preview in software .

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OST to ICS Converter Software - Features Overview

Perform fastest OST File Conversion to ICS (.ics) files with Outlook Calendar data.
Convert OST to ICS files and get results in 2 distinct modes: -
Save OST to ICS files in 2 modes - Save Each contact in Separate ICS or Save All in One ICS file.
Open OST files, load Complete Mailbox and provide a Clear preview of all items- Calendar, Contact, Emails, etc.
Perform conversion of Single or Multiple Outlook OST files (Bulk) in a single operation.
Supporting Corrupt/ Orphaned/ Encrypted as well as Healthy OST files for conversion.
Shows entire mailbox folders available in OST file and allows required folder selection to export data items from them.
Exports each calendar with its every related information - Title, Date, Time, Location, Description, Attendees, Organizer, Reminder, Status, Attachment, etc.
Makes users able to convert OST to 13 More File formats - PST/ MSG/ HTML/ MHTML/ EML/ EMLX/ MBOX/ vCard(.vcf)/ CSV/ Zimbra (TGZ)/ Thunderbird & PDF.
Feature available to direct data transfer from OST to Office 365/ Gmail/ Yahoo Mail, &IMAP Accounts.
Enables manual specification of a save location on the user's machine to store newly generated files.
Also, allows users to convert Outlook's PST and NST files with the same process.
Supports files generated from any older to the new edition of MS Outlook - 2000/ 2003/ 2007/ 2010/ 2013/ 2016/ 2019/ 2021 & 2024.
Graphical Interface for handling OST conversion effortlessly & flawlessly by all kinds of users.
Available with support for all Windows O/S editions - 11/ 10/ 8/ 8.1/ 7/ XP/ Vista and older.

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Demo Edition : to Convert OST to ICS and other Export options with 25 items at no cost.

Software Working Screenshots

OST to ICS Calendar Conversion Tool - Complete Feature's Details

Dedicated Tool for Outlook OST to ICS Conversion

Exclusive program for Conversion of Outlook's OST files into ICS Calendar File. Extract and store Outlook Calendars from OST to ICS file for using with various supported programs such as - MS Outlook, Google Calendar, IBM Notes, etc.

Convert OST to ICS files and get results in 2 distinct modes: -

Save Each calendar to Separate ICS: - Software auto-saves each calendar to an individual ICS file.
Create Single File for All Selected Folders: - Generate one ICS file to hold all contacts of OST file's selected folders.

Learn More >> How to Convert OST to ICS Calendar files?

OST Conversion to 13 More File formats

With this single software, convert OST files to 13 other options besides ICS. The available options are : -

Export to PST Convert OST to PST file format. Create separate PST for each OST file (save selected folders of each OST).
Export to Single PST Save data of all OST files into a single PST file.
Export to MSG Save each OST file's item in individual MSG file (Easy access on Outlook).
Export to HTML Save each OST items to HTML for easily accessing in web browsers.
Export to MHTML Store each OST file's item in MHTML file (also a web browser compatible file type).
Export to EML Save every OST file's email as individual EML for access in compatible email clients- Thunderbird, Outlook, Live Mail, etc.
Export to EMLX Preserve OST files email in EMLX file for MAC Apple Mail (each email in individual EMLX file).

Export to MBOX Each mail folder export from OST and save in separate MBOX file. (Also, allows saving emails of all OST folders in single MBOX file.)
Export to vCard(.vcf) Separate export contacts from OST files and save in vCard files.
Export to CSV Save OST file's items and save in form of spreadsheets inside CSV file (Comma Separated Values).
Export to Thunderbird Directly import mail folders from OST files to email profile existing in Thunderbird profile.
Export to PDF Save each OST file's email in their individual PDF file.

Upload OST to Cloud/ Web Email Services

Available with smart feature to directly transfer Outlook mailbox items from OST files to cloud based email services. Easily migrate Outlook data from single or multiple OST files to Web mail platforms with options: -

Import OST to Office365: - Transfer Outlook OST file items to Office365 Mailbox.
Import OST to Gmail/ Google Workspace: - Migrate mail folders and other items from OST file to Gmail or Google Workspace (Business email) account.
Import OST to Yahoo Mail: - Export data from Outlook OST files to Yahoo Mail cloud.
Import OST to IMAP Account: - Using this option, export OST file's data to any web email platform via IMAP protocol.

Learn More >> How to Import OST to Cloud Email Programs?

OST File-Add Modes (Single/ Bulk)

Allows conversion of single and multiple OST files in a single job with options: -

Single OST File Conversion: - Select or search for a specific OST file and convert it.
Bulk OST File Conversion: - Add multiple OST files to the software and convert all at once.
Choose Configured Outlook Profile: - load profiles that available in MS Outlook, and select one or more for conversion.

View Outlook Items from OST file

Available with the facility to directly open OST files and read all Outlook mailbox items available in them. This software provides an exact preview of all the items (emails, contacts, calendars, etc.) as they are in the OST file and appear in MS Outlook.

All Outlook's OST files Support

Allows converting all types of OST files - corrupted/ orphaned/ encrypted/ offline or readable. Supports OST file generated from any settings (IMAP/ Exchange or Office365). Apart from OST file, this software also enables users to convert Outlook's PST and NST files.

Export Selective Folders from OST

Software shows the available folders of OST files on the right side of the preview panel. From there, users can read their internal Outlook items by selecting the folder and choosing the required folders containing calendars or other items for the export process.

Export Calendar with Every Detail

While performing OST to ICS file conversion, the software exports each Outlook calendar from the OST file with all its associated elements. Each Outlook OST calendar will be exported and saved in ICS file with all details - Title, Date, Time, Location, Description, Attendees, Organizer, Reminder, Status, Attachment, etc.

Manually Choose Saving location

The software enables users to specify the location to store the new files (ICS or others) generated by OST conversion. Users can easily choose any location from their local drive, and the software automatically provides the new files there.

Supports All Outlook Editions

OST files generated from any old or new version of MS Outlook application will work. ANSI and Unicode OST files of any MS Outlook version - 2024/ 2021/ 2019/ 2016/ 2013/ 2010/ 2007/ 2003/ 2000 and older, are supported by this software. Software only requires your OST file and enables converting OST without MS Outlook application.

Easily Accessible by All Users

With the available graphical interface of this software, OST file conversion is extremely easy for all users. With just a few clicks, anyone (both technical and non-technical) can use all the functions and features of the software.

Executable on Windows O/S

Software available to work on computers with Windows operating system. In computers with Windows O/S - 11, 10, 8.1, 8, 7, Vista, XP, or earlier versions, users can run this tool and use it to convert OST file to ICS and other supported conversion options.

Free OST to ICS Conversion Demo

eSoftTools provides a free demo version of OST to ICS Converter to try out the software practically before purchasing. Through this demo, users can check out the capabilities and functions of the software.

Note: - It has the capacity to export upto 25 items from each folder of the OST file.

Frequently Asked Questions (FAQ)

How to Convert OST to ICS & Export Outlook Calendar via OST To ICS Converter?

Download setup file of eSoftTools OST to ICS Converter software for Windows O/S.
Run the setup, install the software and launch on your computer.
Click on Select OST button and choose single or bulk file conversion mode.
Add OST files with your chosen conversion mode and Start Scanning.
Load Outlook mailbox data (including calendar events) from OST files.
Select necessary folders (containing calendar specifically) and click on Save OST.
Choose the export option Export to ICS (.ics) and optionally select Create Single File for all folders.
Apply other settings, like - saving location selection and lastly, click on Convert.
Start OST to ICS conversion and save Outlook OST file's Calendars to ICS files.

Check the complete process with screenshots here: How to Convert OST to ICS (iCalendar) files?

Will this software allow me to save calendar different OST files or folder to single ICS file?

Yes, you can enable Create single file for all folders option to do this during OST to ICS conversion process. Enabling this will save calendar from all your selected OST files to one ICS files.

Is this software able to convert several OST files in single operation?

Yes, the bulk conversion feature is available specifically for this. It is for those users who want to convert their multiple OST files at once.

Will this software allow me to perform calendar recovery from corrupt or inaccessible OST file?

Yes, this software works for recovering data from inaccessible OST files. It helps users to perform recovery all Outlook mailbox items from OST file (including- calendar, email, contacts, and other elements).

Is this software limited to exporting calendars only, or is it capable of exporting other Outlook mailboxes from OST file as well?

OST to ICS conversion is limited to exporting calendars from OST. But while converting OST to other available conversion formats, you can also export emails, contacts, tasks, journals and other items.

Besides converting OST files to ICS, what other export options are available with this software?

In addition to ICS, the software offers 13 other conversion options to save OST items to local files and 4 OST file migration options to cloud email platforms.

Conversion formats: - Supports converting OST to PST/ EML/ EMLX/ MSG/ HTML/ MHTML/ MBOX/ vCard/ CSV/ Thunderbird/ PDF/ and Zimbra (TGZ).
OST to Cloud options: - Upload Outlook items from OST to Office365/ Gmail/ Yahoo Mail and IMAP Accounts

I want to convert OST and export data from some specific folders of OST files. Is it possible?

Yes, the software allows selecting specific folders from the OST file to export Outlook items from selected folders only.

Will this software make any modifications to the calendar events available in the OST file for conversion?

No, the software never makes any changes to the calendar or other available in the OST file. Keep each item in the source OST file in its exact form.

Does this software require MS Outlook application while doing OST file conversion?

This software will convert your OST files without the requiring MS Outlook application.

Why free demo of OST to ICS Converter is offered by eSoftTools?

A free demo version is available for every user to test the software before purchasing it. After being fully satisfied with the features and functionality of the software, you can decide to purchase its paid version.

CLIENT REVIEW'S

(Rated 5 Star)

When my Microsoft 365 subscription expired and I could not access my Outlook account, I was in a real bind. That calendar contained years of my important business meetings and personal appointments. I simply had an offline OST file on my computer. After a little research, I found eSoftTools OST to ICS Converter software, and it worked flawlessly. It scanned my large OST file, let me preview all my calendar entries, and converted them to an ICS file, which I then imported directly into my new Calendar app. The entire process was seamless and surprisingly fast. Highly recommended!

[ David Miller ] [ Canada ]

(Rated 5 Star)

I am not a very technical person, so I was worried about trying to extract calendar data myself. My old office laptop broke down, but I managed to recover the OST file from the hard drive. I needed to transfer my calendar to my personal Mac. This software was perfect. The interface is clean and simple. I just had to select the file, and it showed me everything. I converted all my appointments to ICS in less than five minutes. There were no errors, and all recurring events and meeting notes were completely safe.

[ Sofia Rossi ] [ Italy ]

(Rated 5 Star)

As an IT consultant, I often handle data migration for clients. Recently, a client needed to migrate from an on-premises Exchange server to Google Workspace, but they only wanted to migrate calendar data for the past two years. The eSoftTools OST to ICS converter software was perfect for this. The date-range filter is a great feature that allowed me to select and export only the required period. This saved us from migrating tons of unnecessary old data and made the transition much easier. Its a reliable and efficient tool for any professionals toolkit.

[ Kenji Tanaka ] [ Japan ]