Click the "Select File" button above, and choose your MSIM file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert MSIM to another file type
To convert your MSIM file to another format, you need mSecure or other Backup software.
Convert a file to MSIM
To convert other file formats to the "Password Manager Backup" file type, you need software like mSecure or a similar tool.
About MSIM files
The .msim extension serves two distinct, incompatible groups of users. For the majority (52%), it is a Secure Backup created by mSecure Password Manager. These files are encrypted 'digital vaults' containing login credentials, credit card info, and secure notes. Users often mistakenly try to 'convert' these directly to CSV or XLSX to view them in Excel, but the file is locked by 256-bit encryption and cannot be opened without the original mSecure application and your master password. For engineers and researchers (22%), the file is a Physical Modeling Simulation archive used by Maplesoft MapleSim. These are actually renamed ZIP containers holding XML definitions, assets, and code for system-level modeling.
Best Conversion Targets:
For mSecure Users: You cannot convert the .msim file directly. You must Restore the backup inside the mSecure app (Settings > Restore), then use the app's internal tool to Export data to CSV (for Excel) or HTML (for printing/archiving).
For MapleSim Users: To share models with non-users, use MapleSim to export the simulation as a Standalone FMU (Functional Mock-up Unit), SLX (for MATLAB Simulink), or generated C code. To simply inspect the internal file structure without MapleSim, rename the file extension from .msim to zip and extract it.
Convert.Guru analyzes your MSIM file, detects the exact format, and lets you read the text inside.
If you want to convert MSIM file to BAK, BACKUP, OLD, TMP, TEMP, ARC, ZIP, TAR, GZ, 7Z, RAR or ISO, you can use mSecure or similar software from the "Secure Data Backup" category. In the File menu, look for Save As… or Export….
To convert SNAPSHOT, OLD, IMG, RESTORE, ISO, COPY, VMDK, TMP, VHD, BAK, ARCHIVE or BACKUP files to MSIM, try mSecure or another comparable tool in the "Secure Data Backup" category.
The MSIM Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our MSIM converter.