Free online ICS to XLSX converter
Convert ICS calendar files to XLSX spreadsheets and keep event data organized.
Convert ICS to XLSX online - free
Your file is processed instantly and deleted as soon as you download it.
Import a file from a URL
Paste a direct link to the file. We download it to our server and it is converted exactly like an upload.
How it works
-
1/3
Upload your .ics file
Click to browse to select your file you want to convert or simply drag & drop your file into selected area.
-
2/3
Perform .ics to .xlsx conversion
After successful file upload, click to convert when you are ready.
-
3/3
Download converted .xlsx file
Conversion result is ready to download.
How to convert ics to xlsx file
- Contacts and address books
- Rating: 1.5/5
Source format: ICS
ICS is the iCalendar file format, a plain-text standard for storing calendar data such as events, meetings, reminders, and recurring schedules. It is widely used by calendar apps and services, including Apple Calendar, Google Calendar, Microsoft Outlook, and many scheduling systems. An .ics file may contain event titles, dates, times, locations, descriptions, attendees, alarms, time zones, and recurrence rules.
Target format: XLSX
XLSX is the default spreadsheet format for Microsoft Excel and is also supported by other spreadsheet programs such as LibreOffice Calc and Google Sheets. It supports structured tables, formulas, sorting, filtering, and formatting. Converting calendar data to XLSX is useful when you want to analyze events in a spreadsheet, create reports, sort appointments by date, or share calendar information in a tabular form.
How to convert ICS to XLSX
The simplest option is to use the built-in converter on 101convert.com, which lets you convert the file online for free without installing any software.
- Open the ICS to XLSX conversion page on 101convert.com.
- Upload your
.icsfile. - Start the conversion and wait for the spreadsheet file to be generated.
- Download the resulting
.xlsxfile and open it in Excel, LibreOffice Calc, or another spreadsheet app.
If you need to convert many calendar files or want more control over the output, desktop tools or scripts can help. For example, you can first export calendar data into a tabular format such as CSV, then open that file in Excel and save it as .xlsx. In Microsoft Excel, use File → Open or Data → Get Data depending on the source format, then save the workbook as .xlsx.
Notes on quality and limitations
ICS is a calendar format, not a spreadsheet format, so the conversion is not always perfectly one-to-one. A single ICS file may contain recurring events, alarms, attendees, and timezone rules that do not map cleanly into spreadsheet columns. In XLSX, these details are usually flattened into rows and columns, which can make complex calendar behavior harder to preserve.
For best results, expect the output to focus on event data such as summary, start time, end time, location, and description. Recurrence patterns, reminders, and timezone handling may be simplified depending on the converter. If your goal is analysis or reporting, XLSX is a good target; if your goal is to preserve full calendar functionality, keep the original .ics file as well.
ICS vs XLSX: format comparison
How the ICS and XLSX formats compare on the properties that matter most for this conversion.
| Property | .ICS vCalendar/iCalendar file | .XLSX Microsoft Excel Open XML Spreadsheet |
|---|---|---|
| Open standard | Yes | Yes |
| Compression | Uncompressed | Both |
| Typical file size | Small | Medium |
| Opens in a web browser | Yes, natively | Partial |
| Further editing | Limited | Easy |
| Metadata support | Extensive | Extensive |
| Plain-text readable | Yes | No |
| Best used for | Sharing and distribution | Data exchange |
| Introduced | 1998 | 2007 |
| Developer | Internet Engineering Task Force (IETF) | Microsoft |
| MIME type | text/calendar | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
The database currently does not contain any direct ics file converter links.
Frequently asked questions
Is the ICS to XLSX converter free?
Yes, converting ICS to XLSX on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.
How large can my ICS file be?
You can upload ICS files up to 15 MB and convert up to 100 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert ICS to XLSX?
No. The ICS to XLSX conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid ICS file for this ICS to XLSX conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.
Will recurring events in an ICS file stay as recurring events in XLSX?
Recurring events may be flattened into individual rows or kept as recurrence information, depending on the conversion. XLSX does not have a native calendar recurrence system, so the original rule may not remain directly editable as a calendar event.
Will time zones and all-day events convert correctly from ICS to XLSX?
They usually convert as date and time values, but the displayed time can shift if the source time zone is interpreted differently. All-day events may also appear as dates without times, so check the spreadsheet's date and time formatting.
What ICS event information is lost when converting to XLSX?
Basic details such as the title, dates, location, description, and attendees can be placed in spreadsheet columns, but calendar behavior such as alarms, recurrence handling, and invitation status may be flattened or stored only as text. The result is a data table rather than a fully functioning calendar.
Why are some ICS events missing or placed in the wrong spreadsheet columns?
Malformed calendar entries, unsupported recurrence rules, or unusual fields can prevent an event from being read cleanly. Different ICS records may contain different fields, so blank cells or inconsistent columns can appear in the XLSX result.