A file with the XLM file extension is an Excel 4.0 Macro file. Macros allow automation so that repetitive tasks can be “played” to save time and lower the likelihood of errors.

The XLM macro format is an old one that's been used in malware attacks, which typically occur by attaching Office document files containing these macros in e-mails. Now, the XLM format is starting ...

XLM (aka Excel 4.0) macros were the default Excel macro format until Excel 5.0 was released in 1993 when Microsoft first introduced VBA macros which are still the default format.. However, despite ...